Research activity information

• Feb. 2024 色材協会, 色材協会功績賞


• May 2021 日本ゴム協会, 第13回日本ゴム協会科学技術奨励賞, 高分子微粒子の構造制御とその機能化に関する研究


• Feb. 2016 Japan Society of Colour Material, 2015 Most Accessed Review Award of Japan Society of Colour Material (2016), Preparation of Composite Particles Utilizing Hydrogen Bonding Interaction

  MINAMI HIDETO, CHANG Cheng, SUZUKI Toyoko

  一般社団法人・色材協会が発行している『色材協会誌』の中で、2015年に最もダウンロードが多かった総説論文に対して授与される

  Official journal


• Nov. 2010 社団法人 色材協会, 2010年度色材協会研究発表会最優秀ポスター賞, SaPSeP法によるイオン液体含有カプセル粒子の合成

  MINAMI Hideto


• Jul. 2008 Prague Meeting on Macromolecules 48th Microsymposium: Polymer Colloids: From Design to Biomedical and Industrial Applications (2008), First Prize for Poster Contest, Preparation of Polystyrene/Polyacrylic acid Composite particles in Ionic liquids

  MINAMI Hideto


• Jun. 2005 日本接着学会, 第43回年次大会ベストポスター賞, SaPSeP法を用いた重付加反応による硬化剤内包型マイクロカプセルの調製

  KANAMORI Hiroyuki, MINAMI Hideto, OKUBO Masayoshi


• May 2005 高分子学会, Award for Encouragement of Research in Polymer Science, ミクロンサイズの単分散中空橋かけ粒子の創製

  MINAMI Hideto

• One-pot preparation of micrometer-sized monodispersed silicone hollow particles

  Hyota Nishi, Shintaro Ishidate, Reina Nakamoto, Shinya Katsube, Nozomu Suzuki, Toyoko Suzuki, Hideto Minami

  Abstract Micrometer-sized, monodispersed silicone hollow particles are functional materials with properties attributed to both their hollow structure and the silicone composition. However, there are few reports on their preparation. We have successfully prepared these particles by combining an original suspension polymerization technique, the self-assembling phase-separated polymer method, with a molecular diffusion method. The resulting particles exhibit heat resistance owing to the silicone matrix and maintain their hollow structure even after heating to 900 °C.

  Oxford University Press (OUP), Dec. 2024, Chemistry Letters, 54(1) (1)

  Scientific journal


• Preparation of High‐Heat‐Resistant Silicone Hollow Particles

  Hyota Nishi, Shintaro Ishidate, Ryuta Amasaki, Reina Nakamoto, Shinya Katsube, Nozomu Suzuki, Toyoko Suzuki, Hideto Minami

  Abstract Single hollow particles are used in various fields, particularly in thermal insulation materials, owing to their low thermal conductivity attributed to encapsulated air properties. “The self‐assembling phase separated polymer (SaPSeP) method” is an original hollowing method that is proposed by this laboratory 25 years ago. Most hollow particles prepared by the SaPSeP method have carbon, oxygen, and hydrogen polymer shells, which lack sufficient heat resistance. In this study, hollow particles with a silicone shell, which is highly heat‐resistant, are prepared using the SaPSeP method using a trimer of 3‐methacryloxypropylmethyldimethoxysilane (MPDS). The MPDS trimer (3MPDS) is synthesized through the sol–gel reaction of MPDS with a basic aqueous solution. Additionally, hollow particles are prepared using a new silicone oligomer composed of MPDS and dimethoxymethylvinylsilane (DMVS). Both hollow particles prepared from 3MPDS and from a new silicone oligomer composed of MPDS and DMVS showed high heat resistance. They maintained their hollow structure even when exposed to temperatures up to 900 °C.

  Wiley, Dec. 2024, Macromolecular Reaction Engineering

  Scientific journal


• Preparation of Golf Ball-like Polymer Particles Bearing Site-Selective Functional Groups

  Takahiro Morishita, Ikuko Maitani, Takeru Michiura, Nozomu Suzuki, Toyoko Suzuki, Kensuke Akamatsu, Hideto Minami

  American Chemical Society (ACS), Nov. 2024, ACS Applied Materials & Interfaces, 16(46) (46), 64058 - 64064

  Scientific journal


• High‐Intensity Circular Dichroism of Head‐to‐tail Regioregular Poly(1,4‐phenylene)s in the Aggregated State

  Rikuya Tanaka, Seiha Yamaoka, Shuichi Ikeda, Kentaro Okano, Masaki Horie, Hideto Minami, Nozomu Suzuki, Atsunori Mori

  Circular dichroism (CD) studies on poly(1,4‐phenylene)s bearing a chiral side chain in the aggregated conditions were carried out. Little CD was observed in a solution form, while addition of a poor solvent into the polyphenylene solution induced aggregation and a strong CD was observed, accordingly. Applying the controlled degree of polymerization (DP) of poly(1,4‐phenylene) in the use of bidentate diphosphine Chiraphos as a ligand for the nickel catalyst, the relationship of DP with CD strength was studied to reveal to show the highest CD at the DP = 84 (gabs = ca. 2 x 10–2). It was also found that the related aggregation was observed in good solvent 1,2‐dichloroethane upon standing the solution at 4 °C for 3–23 days to observe gabs = ca. 10–1. Studies on the substituent effect of poly(1,4‐phenylene) suggested that CD behaviors were dependent on the type of non‐chiral substituent on the aromatic ring as well as the side‐chain chirality.

  Wiley, 2024, Chem. Eur. J., 30(35) (35), e202400706

  [Refereed]

  Scientific journal


• Preparation of polyimide hollow particles using chemical imidization

  Nao Minoshima, Takeru Michiura, Takuto Ouchi, Shinya Matsuno, Nozomu Suzuki, Toyoko Suzuki, Hideto Minami

  Abstract Hollow polyimide (PI) particles were successfully prepared using chemical imidization with acetic anhydride and pyridine as the chemical imidization reagents. The imidization reagents were added to the dispersion in which N,N-dimethylformamide (DMF) droplets with dissolved poly(amic acid) (PAmA, the precursor of PI) were dispersed in a cyclohexane medium. In the absence of poly(n-butyl methacrylate) (P[n-BMA]) in PAmA/DMF droplets, approximately 10% of the PI particles had hollow structures. Conversely, in the presence of a small amount of P(n-BMA) in PAmA/DMF droplets (0.2∼1 wt%), all PI particles had hollow structures. The P(n-BMA) would affect the phase separation of the PI in the droplets, thereby promoting the formation of a hollow structure.

  Corresponding, Oxford University Press (OUP), Dec. 2023, Chemistry Letters, 53(2) (2), English

  [Refereed]

  Scientific journal


• Preparation and characterization of carboxyl functional mesoporous ZnO-SiO2 composites and in vitro sensing of glucose and vancomycin

  M. Mahabur Rahman, Hideto Minami, M. Kawsar Hossain, M. Mahbubor Rahman, S. Manjura Hoque, M. Rabiul Karim, M. Samiul Islam Sarker, Hasan Ahmad

  Elsevier BV, Oct. 2023, Sensors and Actuators B: Chemical, 393, 134133 - 134133, English, Co-authored internationally

  [Refereed]

  Scientific journal


• A rapid abiotic/biotic hybrid sandwich detection for trace pork adulteration in halal meat extract

  Chehasan Cheubong, Hirobumi Sunayama, Eri Takano, Yukiya Kitayama, Hideto Minami, Toshifumi Takeuchi

  A novel sandwich detection was demonstrated for 0.01 wt% pork adulteration within 30 min, using PSA-imprinted polymer nanogels to capture PSA and anti-PSA antibody complexed with-Fc-domain imprinted fluorescent polymer nanogels to detect PSA.

  Royal Society of Chemistry (RSC), Aug. 2023, Nanoscale, 15(37) (37), 15171 - 15178, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• A potential recyclable catalyst: In situ growth of bimetallic Cu-Ag nanoalloy on the magnetic SiO2/Fe3O4-SiO2-NH2 nanocomposite support using a green approach

  Md. Zakaria Sarker, Md. Mahbubor Rahman, Hideto Minami, Md. Samiul Islam Sarker, Md. Shahidul Islam, Hasan Ahmad

  Elsevier BV, Jul. 2023, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 668, 131447 - 131447, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Iodine-influenced morphological evolution of micrometer-sized poly(methyl methacrylate)-block-poly(vinyl acetate) particles upon hydrolysis

  Chujuan Huang, Toyoko Suzuki, Hideto Minami

  Iodine transfer polymerization was used to synthesize micrometer-sized block copolymer particles using methyl methacrylate (MMA) and vinyl acetate (VAc) in a microsuspension system. Three morphologies were obtained after hydrolysis, depending on the block ratio.

  Corresponding, Royal Society of Chemistry (RSC), Jun. 2023, Polymer Chemistry, 14(26) (26), 3126 - 3135, English

  [Refereed]

  Scientific journal


• Facile one-step synthesis of poly(styrene-glycidyl methacrylate)-Fe3O4 nanocomposite particles and application potency in glucose biosensors

  Mohammad Kawsar Hossain, Mostafa Kaiyum Sharafat, Hideto Minami, Toyoko Suzuki, Mohammad Ashraful Alam, Mohammad Mahabur Rahman, Hasan Ahmad

  Springer Science and Business Media LLC, Apr. 2023, Journal of Polymer Research, 30(3) (3), English, Co-authored internationally

  [Refereed]

  Scientific journal


• Layer‐by‐layer preparation of electromagnetic NH ₂ ‐SiO ₂ /polypyrrole/Ni nanocomposites, characterization and their electrochemical properties

  M Sagor Ali, M Mahabur Rahman, Hideto Minami, M Kawsar Hossain, M Abdur Rahman, M Abdul Gafur, Hasan Ahmad

  Wiley, Apr. 2023, Polymer International, 72(4) (4), 424 - 433, Co-authored internationally

  [Refereed]

  Scientific journal


• Fabrication of porous polymer particles containing BiVO4 and Fe3O4 nanoparticles using block copolymer as porogen for effective dye removal

  Chanyanuch Kraithep, Warayuth Sajomsang, Hideto Minami, Chumphol Busabok, Pramuan Tangboriboonrat, Preeyaporn Chaiyasat, Amorn Chaiyasat

  Elsevier BV, Apr. 2023, Surfaces and Interfaces, 37, 102738 - 102738, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Morphology of polypropylene/polystyrene composite particles prepared by seeded emulsion polymerization: influence of azo initiator intrinsic charge

  Ryohei Morimoto, Toyoko Suzuki, Hideto Minami

  The morphologies of polypropylene (PP)/polystyrene (PS) composite particles obtained using different type of the initiator in the seeded emulsion polymerization of styrene with multi-hollow PP seed particles.

  Corresponding, Royal Society of Chemistry (RSC), Jan. 2023, Polymer Chemistry, 14(3) (3), 352 - 358, English

  [Refereed]

  Scientific journal


• Impact of mesoporous SiO₂ support for Ni/polypyrrole nanocomposite particles on their capacitive performance

  M. Sagor Ali, M. Mahabur Rahman, M. Kawsar Hossain, Hideto Minami, M. Mahbubor Rahman, S. Manjura Hoque, M. Ashraful Alam, Hasan Ahmad

  The inclusion of mesoporous H₂N-SiO₂ support in H₂N-SiO₂/Ni/PPy nanocomposite particles improved their electrochemical performance, suitable for energy storage devices.

  Royal Society of Chemistry (RSC), Nov. 2022, New Journal of Chemistry, 46(45) (45), 21798 - 21811, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Preparation of Polypropylene/Polystyrene Composite Particles with Multilayered Inner Morphology by Seeded Emulsion Polymerization

  Ryohei Morimoto, Toyoko Suzuki, Hideto Minami

  Corresponding, American Chemical Society (ACS), Aug. 2022, ACS Applied Polymer Materials, 4(8) (8), 5619 - 5625, English

  [Refereed]

  Scientific journal


• Magnetite incorporated amine-functional SiO2 support for bimetallic Cu-Ni alloy nanoparticles produced highly effective nanocatalyst

  Mohammad Zakaria Sarker, Mohammad Mahbubor Rahman, Hideto Minami, Toyoko Suzuki, Mohammad Abdur Rahman, Alam Khan, Sheikh Manjura Hoque, Hasan Ahmad

  Elsevier BV, Aug. 2022, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 647, 129044 - 129044, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Preparation of Monodisperse Bio-Based Polymer Particles via Dispersion Polymerization

  Katsuhiro Onita, Miku Onishi, Taro Omura, Takeshi Wakiya, Toyoko Suzuki, Hideto Minami

  Corresponding, American Chemical Society (ACS), Jun. 2022, Langmuir, 38(23) (23), 7341 - 7345, English

  [Refereed]

  Scientific journal


• Synthesis of Polypyrrole and Its Derivatives as a Liquid Marble Stabilizer via a Solvent-Free Chemical Oxidative Polymerization Protocol

  Musashi Seike, Makoto Uda, Toyoko Suzuki, Hideto Minami, Shinya Higashimoto, Tomoyasu Hirai, Yoshinobu Nakamura, Syuji Fujii

  American Chemical Society (ACS), Apr. 2022, ACS Omega, 7(15) (15), 13010 - 13021, English, International magazine

  [Refereed]

  Scientific journal


• Preparation of elastic/glassy Janus composite particles by seeded polymerization

  Ken Mukai, Yuki Fujii, Toyoko Suzuki, Hideto Minami

  Corresponding, Springer Science and Business Media LLC, Apr. 2022, Colloid and Polymer Science, 300(4) (4), 365 - 373, English, International magazine

  [Refereed]

  Scientific journal


• Amine functional silica–supported bimetallic Cu-Ni nanocatalyst and investigation of some typical reductions of aromatic nitro-substituents

  Mohammad Zakaria Sarker, Mohammad Mahbubor Rahman, Hideto Minami, Toyoko Suzuki, Hasan Ahmad

  Springer Science and Business Media LLC, Apr. 2022, Colloid and Polymer Science, 300(4) (4), 279 - 296, English, International magazine, Co-authored internationally

  [Refereed]

  Scientific journal


• Synthesis of micrometer-sized poly(vinyl acetate) particles through microsuspension iodine transfer polymerization: effect of iodine species in a water medium

  Chujuan Huang, Toyoko Suzuki, Hideto Minami

  Schematic of the behaviors of iodine species in the microsuspension polymerization of vinyl acetate (VAc) in an aqueous medium.

  Corresponding, Royal Society of Chemistry (RSC), Feb. 2022, Polymer Chemistry, 13(5) (5), 640 - 648, International magazine

  [Refereed]

  Scientific journal


• Preparation of Polypropylene-Composite Particles by Dispersion Polymerization

  Ryohei Morimoto, Toyoko Suzuki, Hideto Minami

  Corresponding, American Chemical Society (ACS), Aug. 2021, Langmuir, 37(34) (34), 10388 - 10393, English

  [Refereed]

  Scientific journal


• Preparation of Salt-Responsive Hollow Hydrophilic Polymer Particles by Inverse Suspension Polymerization

  Taro Omura, Toyoko Suzuki, Hideto Minami

  Corresponding, American Chemical Society (ACS), Aug. 2021, Langmuir, 37(31) (31), 9371 - 9377, English

  [Refereed]

  Scientific journal


• In situ preparation of inorganic nanoparticles in amino‐functionalized porous cellulose particles

  Taro Omura, Yuki Fujii, Toyoko Suzuki, Hideto Minami

  Corresponding, Wiley, May 2021, Journal of Applied Polymer Science, 138(19) (19), 50397 - 50397, English

  [Refereed]

  Scientific journal


• Mesoporous amine functionalized SiO2 supported Cu nanocatalyst and a kinetic-mechanistic degradation study of azo dyes

  Mohammad Zakaria Sarker, Mohammad Mahbubor Rahman, Hideto Minami, Toyoko Suzuki, Mohammad Kawsar Hossain, Hasan Ahmad

  Elsevier BV, May 2021, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 617, 126403 - 126403, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Monodispersed Nitrogen-Containing Carbon Capsules Fabricated from Conjugated Polymer-Coated Particles via Light Irradiation

  Keigo Oyama, Musashi Seike, Koji Mitamura, Seiji Watase, Toyoko Suzuki, Taro Omura, Hideto Minami, Tomoyasu Hirai, Yoshinobu Nakamura, Syuji Fujii

  Near-infrared (NIR) light irradiation induced the transformation of polypyrrole (PPy) to nitrogen-containing carbon (NCC) material due to its light-toheat photothermal property. The temperature of the PPy increased over 700 degrees C within a few seconds by the NIR laser irradiation, and elemental microanalysis confirmed the decreases of hydrogen and chloride contents and increases of carbon and nitrogen contents. Monodispersed polystyrene (PS)-core/PPy shell particles (PS/PPy particles) synthesized by aqueous chemical oxidative seeded polymerization were utilized as a precursor toward monodispersed NCC capsules. When the NIR laser was irradiated to the PS/PPy particles, the temperature rose to approximately 300 degrees C and smoke was generated, indicating that the PS component forming the core was thermally decomposed and vaporized. Scanning electron microscopy studies revealed the successful formation of spherical and highly monodispersed capsules, and Fourier transform infrared spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy studies confirmed the capsules consisted of NCC materials. Furthermore, sunlight was also demonstrated to work as a light source to fabricate NCC capsules. The size and thickness of the capsules can be controlled between 1 and 80 pm and 146 and 231 nm, respectively, by tuning the size of the original PS/PPy particles and PPy shell thickness.

  American Chemical Society (ACS), Apr. 2021, Langmuir, 37(15) (15), 4599 - 4610, English

  [Refereed]

  Scientific journal


• Synthesis of Micrometer-Sized Poly(methyl acrylate) by Temperature-Step Microsuspension Polymerization with Iodoform Based on the “Radical Exit Depression” Effect§

  Chujuan Huang, Hideto Minami, Masayoshi Okubo

  Corresponding, American Chemical Society (ACS), Mar. 2021, Langmuir, 37(10) (10), 3158 - 3165, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Magnetically responsive antibacterial nanocrystalline jute cellulose nanocomposites with moderate catalytic activity

  Mohammad Ahasanur Rabbi, Mohammad Mahbubor Rahman, Hideto Minami, Nobuko Yamashita, Mohammad Rowshanul Habib, Hasan Ahmad

  Elsevier BV, Jan. 2021, Carbohydrate Polymers, 251, 117024 - 117024, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Preparation of Cylindrical Janus Particles Using a Stirring Method

  Miku Onishi, Yuya Tsujishita, Wei Li, Toyoko Suzuki, Hideto Minami

  Corresponding, American Chemical Society (ACS), Dec. 2020, ACS Omega, 5(51) (51), 33047 - 33052, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Formation of Colloidal Superstructures of Disc-like Particles Utilizing Hydrogen Bonding Interactions between Steric Stabilizers

  Mana Fujii, Junichi Tsukiji, Takanori Nakano, Taro Omura, Toyoko Suzuki, Hideto Minami

  Corresponding, American Chemical Society (ACS), Dec. 2020, Macromolecules, 53(24) (24), 11027 - 11032, English

  [Refereed]

  Scientific journal


• Preparation of cellulose particles with a hollow structure

  Taro Omura, Toyoko Suzuki, Hideto Minami

  In this study, we report the preparation of hollow cellulose particles via a solvent-releasing method with the ionic liquid 1-ethyl-3-methylimidazolium acetate ([Emim]Ac). A dispersion comprising [Emim]Ac droplets with dissolved cellulose and a hexane medium containing a stabilizer was poured into a large amount of acetone (precipitant), resulting in the precipitation of cellulose and the formation of solid cellulose particles with a hollow structure. We found that the formation of the hollow structure resulted from the equilibrium phase separation. Porous structures were also obtained using ethanol or t-butanol as a precipitant, where cellulose immediately precipitated (i.e., exhibited non-equilibrium phase separation). In the case where acetone was used as the precipitant, the diffusion rate of [Emim]Ac from the droplets into the precipitant was relatively low that is, the precipitation of cellulose was delayed, which allowed the cellulose to be phase-separated into a thermodynamically stable structure (equilibrium phase separation), resulting in the formation of the hollow structure.

  American Chemical Society, Nov. 2020, Langmuir, 36(46) (46), 14076 - 14082, English

  Scientific journal


• Morphology control of silicone/poly(methyl methacrylate) (elastic/glassy) composite particles

  Ken Mukai, Yuki Fujii, Mitsuyoshi Yamane, Toyoko Suzuki, Hideto Minami

  Composite particles consisting of elastic silicone and glassy poly(methyl methacrylate) were prepared. The morphology of the particles could be alternated between sea-island and core–shell structures by controlling the annealing temperature.

  Corresponding, Royal Society of Chemistry (RSC), Oct. 2020, Polymer Chemistry, 11(39) (39), 6328 - 6334

  [Refereed]

  Scientific journal


• Preparation of Cross-Linked Monodisperse Poly(acrylic acid) Particles by Precipitation Polymerization

  NAKANO Takanori, SAITO Naohiko, MINAMI Hideto

  Corresponding, Oct. 2020, Langmuir, 36, 11957 - 11962, English

  [Refereed]

  Scientific journal


• Preparation of Methacrylate Polymer/Reduced Graphene Oxide Nanocomposite Particles Stabilized by Poly(ionic liquid) Block Copolymer via Miniemulsion Polymerization

  Mitsuyoshi Yamane, Yasemin Fadil, Masayoshi Tokuda, Per B. Zetterlund, Hideto Minami

  Corresponding, Sep. 2020, Macromol. Rapid Commun., 41, 2000141 - 2000147, Co-authored internationally

  [Refereed]


• Preparation and morphology control of poly(ionic liquid) particles

  H. Minami

  Aug. 2020, Langmuir, 36, 8668 - 8679, English

  [Refereed][Invited]

  Scientific journal


• Solvent Effects on the Synthesis of Polymeric Nanoparticles via Block Copolymer Self-Assembly Using Microporous Membranes

  Sri Agustina, Masayoshi Tokuda, Hideto Minami, Cyrille Boyer, Per B. Zetterlund

  The self-assembly of block copolymers has attracted attention for many decades because it can yield polymeric nanoobjects with a wide range of morphologies. Membrane emulsification is a fairly novel technique for preparation of various types of emulsions, which relies on the dispersed phase passing through a membrane in order to effect droplet formation. In this study, we have prepared polymeric nanoparticles of different morphologies using self-assembly of asymmetric block copolymers in connection with membrane emulsification. Shirasu Porous Glass (SPG) membranes has been employed as the membrane emulsification equipment, and poly (oligoethylene glycol acrylate)-block-poly (styrene) (POEGA-b-PSt) copolymers prepared via RAFT polymerization. It has been found that a number of different morphologies can be achieved using this novel technique, including spheres, rods, and vesicles. Interestingly, the results have shown that the morphology can be controlled not only by adjusting experimental parameters specific to the membrane emulsification step such as membrane pore size and pressure, but also by changing the nature of organic solvent. As such, this method provides a novel route to these interesting nanoobjects, with interesting prospects in terms of exercising morphology control without altering the nature of the block copolymer itself.

  Trans Tech Publications, Ltd., Jul. 2020, Materials Science Forum, 1000, 324 - 330, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Nickel decorated melamine–formaldehyde resin/polyaniline composites for high specific capacitance

  M. Rashid, M. M. Islam, H. Minami, M. Aftabuzzaman, M. A. Rahman, M. M. Hossain, S. M. Hoque, M. A. Alam, Hasan Ahmad

  Jul. 2020, Materials Chemistry and Physics, 249, 122957 - 122967, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Preparation of Poly(ionic liquid) Particles with Anionic Side-Chain by Dispersion Polymerization

  T. Nakano, M. Yamane, A. Kurozuka, T. Suzuki, H. Minami

  Corresponding, Jun. 2020, Macromol. Rapid Commun., 41, 2000271 - 2000276, English

  [Refereed]

  Scientific journal


• Cationic polyelectrolyte grafted mesoporous magnetic silica composite particles for targeted drug delivery and thrombolysis

  K. A. Bithi, H. Minami, M. K. Hossain, M. M. Rahman, M. A. Rahman, M. A. Gafur, H. Ahmad

  Jun. 2020, Materialia, 11, 100676 - 100685, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Ag impregnated sub-micrometer crystalline jute cellulose particles: catalytic and antibacterial properties

  Mohammad Ahasanur Rabbi, Mohammad Mahbubor Rahman, Hideto Minami, Mohammad Rowshanul Habib, Hasan Ahmad

  Apr. 2020, Carbohydrate Polymers, 233, 115842 - 115850, English, Co-authored internationally

  [Refereed]


• Preparation of Cellulose/Silver Composite Particles Having a Recyclable Catalytic Property

  Yuki Fujii, Kaori Imagawa, Taro Omura, Toyoko Suzuki, Hideto Minami

  We reported the preparation of porous cellulose particles by the solvent-releasing method, in which a solution of cellulose, dissolved in 1-butyl-3-methylimidazolium chloride and N,N'-dimethylformamide, was dropped into a large amount of 1-butanol using a syringe. The obtained particles had a high specific area because of their porous structure. Herein, to functionalize the cellulose particles, carboxylate groups are introduced into their porous structure by 2,2,6,6-tetramethylpiperidine-1-oxyl-mediated oxidation and ion exchange of carboxylate groups to Ag cations is conducted. Composite cellulose/Ag particles were synthesized by the reduction reaction using the carboxylate groups as a scaffold without free silver nanoparticles in the medium. The obtained composite particles exhibited a high catalytic ability, which was evaluated by examining the reduction of 4-nitrophenol. Moreover, we determined that the catalytic efficiency was maintained for at least three cycles by immobilizing Ag on cellulose particles.

  Corresponding, AMER CHEMICAL SOC, Feb. 2020, ACS Omega, 5(4) (4), 1919 - 1926, English

  [Refereed]

  Scientific journal


• Fluorescent Spherical Sponge Cellulose Sensors for Highly Selective and Semi-quantitative Visual Analysis: Detection of Hg2+ and Cu2+ ions

  Shujuan Yu, Wei Li, Yuki Fujii, Taro Omura, Hideto Minami

  Corresponding, Dec. 2019, ACS Sustainable Chem. Eng., 7, 19157 - 19166, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Ambient Temperature Waterborne Polymer/rGO Nanocomposite Films: Effect of rGO Distribution on Electrical Conductivity

  Yasemin Fadil,Le N. M. Dinh, Monique O. Y. Yap, Rhiannon P. Kuchel, Yin Yao, Taro Omura, Ulises A. Aregueta-Robles, Ning Song, Shujuan Huang, Florent Jasinski, Stuart C. Thickett, Hideto Minami, Vipul Agarwal, and Per B. Zetterlund

  Nov. 2019, ACS Appl. Mater. Interfaces, 11, 48450 - 48458, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Biocomposites of synthetic polymer modified microcrystalline jute cellulose particles and their hemolytic behavior

  M. Ahsanur Rabbi, M. Mahbubor Rahman, Hideto Minami, M. Abdur Rahman, S. Manjura Hoque, Hasan Ahmad

  Nov. 2019, Cellulose, 26, 8713 - 8727, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Preparation of Free-standing Silicone Rubber Particles in Aqueous Heterogeneous System

  Hiroki Mitsui, Ken Mukai, Satoshi Ikubo, Toyoko Suzuki, Hideto Minami

  To prepare cross-linked silicone (silicone rubber) particles in an aqueous medium, we investigated two synthesis methods involving a miniemulsion system. The first method was based on cationic ring-opening polymerization of cyclic siloxane, which is a common synthetic route for linear silicone oil and uses octamethylcyclotetrasiloxane (D-4) as the monomer and dimeric D-4 (bis-D-4) as the cross-linker. Although this method produces silicone particles, the particles do not remain in the particulate state after drying because of low cross-linking density. The polymerization mechanism of this method was also investigated, which proceeds under the ring-opening reaction of D-4 in monomer droplets and upon polycondensation of hydrolyzed D-4, which occurs in the water phase (ie, outside the monomer droplets). This mechanism implied that introducing the cross-linking structure into particles is difficult because of the low solubility of bis-D-4 in water. To overcome these difficulties, we demonstrated a second method of preparing silicone particles based on the thiol-Michael addition reaction between thiol-terminated silicone oil and triacrylate in miniemulsion systems. Transmission electron microscopy images indicated that the silicone particles obtained in the particulate state upon drying and the aggregates of these particles showed elasticity.

  Corresponding, WILEY, Nov. 2019, Polym. Adv. Technol.,, 30(12) (12), 3003 - 3010, English

  [Refereed]

  Scientific journal


• Synthesis of block copolymer particles by one-pot, two- step dispersion reversible chain transfer catalyzed polymerization (dispersion RTCP) in supercritical carbon dioxide

  Masayoshi Okubo, Yukiya Kitayama, Tomoya Taniyama, Hideto Minami, Xiang Liu, Chujuan Huang

  Nov. 2019, Ind. Eng. Chem. Res., 58, 21165 - 21170, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Preparation of Janus particles composed of hydrophobic and hydrophilic polymers

  Takuto Ouchi, Ryuma Nakamura, Toyoko Suzuki, Hideto Minami

  Composite particles were prepared by the seeded polymerization of an ionic liquid monomer ([2-(methacryloyloxy)ethyl]trimethylammonium bis(trifluoromethanesulfonyl)amide) ([MTMA][TFSAD in the presence of poly(methyl methacrylate) (PMMA) particles. The obtained particles have a core-shell morphology: PMMA core and P([MTMA][TFSA]) shell. To change the composite particle morphology from core-shell to Janus, we used the solvent-absorbing/releasing method with methyl isobutyl ketone, which is a suitable solvent for PMMA and P([MTMA]-[TFSA]) with nonionic surfactants (polyoxyethylene nonylphenyl ether, Emulgen 950) and Li[TFSA]. Based on the ultrathin cross-section observations, we found the core-shell PMMA/P([MTMA][TFSA]) composite particle morphology changed to a Janus structure. Moreover, anion exchange occurred in the obtained Janus particles. When using LiBr, we obtained PMMA hemisphere particles because of the changes in the PIL hemisphere polarity via anion exchange and dissolution in water. On the contrary, the use of poly(sodium styrenesulfonate) maintained the Janus structure because of ionic cross-linking and the changes in the PIL hemisphere to hydrophilic properties, which became swollen with medium water.

  Corresponding, AMER CHEMICAL SOC, Nov. 2019, Ind. Eng. Chem. Res., 58(46) (46), 20996 - 21002, English

  [Refereed]

  Scientific journal


• Mesoporous electromagnetic composite particles: Electric current responsive release of biologically active molecules and antibacterial properties

  Mohammad K. Hossain, Hideto Minami, Sheikh M. Hoque, Mohammad M. Rahman, Mostafa K, Sharafat, Mosammat F. Begum, Mohammad E. Islam, Hasan Ahmad

  Sep. 2019, Colloids Surfaces B: Biointerface,, 181, 85 - 93, English, Co-authored internationally

  [Refereed]

  Scientific journal


• Carboxylic acid modified pH-responsive composite polymer particles

  Nur-E-Jannat, M. A. Alam, M. A. Rahman, M. M. Rahman, M. K. Hossain, S. Hossain, H. Minami, H. Ahmad

  Jun. 2019, J. Polym. Eng., 39, 671 - 678, English

  [Refereed]

  Scientific journal


• Polymerized ionic liquids as durable antistatic agents for polyether-based polyurethanes

  Akiko Tsurumak, Takuya Iwata, Masayoshi Tokuda, Hideto Minami, Maria Assunta Navarra, Hiroyuki Ohno

  Jun. 2019, Electrochimica Acta, 308, 115 - 120, English

  [Refereed]

  Scientific journal


• The interface adsorption behavior in a Pickering emulsion stabilized by cylindrical polystyrene particles

  Wei Li, Toyoko Suzuki, Hideto Minami

  In this study, cylindrical polystyrene particles were applied as a particulate stabilizer to prepare a Pickering emulsion of decane (oil)/water. Unlike the spherical particles that are typically used in Pickering emulsions, the cylindrical particles enhanced the emulsion's stability (up to 1 year). Furthermore, the cylindrical particulate stabilizer enabled a stable emulsion across a wide range of pH. Notably, unique adsorption behavior of the cylindrical particles on an oil droplet was observed, in which the cylindrical particles connected head to head to form a network that acted as a cage around the oil droplet. (C) 2019 Elsevier Inc. All rights reserved.

  Corresponding, ACADEMIC PRESS INC ELSEVIER SCIENCE, May 2019, J. Colloid Interface Sci.,, 522, 230 - 235, English

  [Refereed]

  Scientific journal


• Single step modification of micrometer-sized polystyrene particles by electromagnetic polyaniline and sorption of chromium(VI) metal ions from water

  Mithun K. Debnath, Mohammad A. Rahman, Hideto Minami, Mohammad M. Rahman, Mohammad, A. Alam, Mohammad K, Sharafat, Mohammad, K. Hossain, Hasan Ahmad

  May 2019, J. Appl. Polym. Sci.,, 136, 47524 - 47538, English

  [Refereed]

  Scientific journal


• Nano-Engineered Multiblock Copolymer Nanoparticles via RAFT Emulsion Polymerization

  Thiago R. Guimara_es, Murtaza Khan, Isabel C. Morrow, Hideto Minami, Graeme Moad, Se_bastien Perrier, Per B. Zetterlund

  Apr. 2019, Macromolecules,, 52, 2965 - 2974, English

  [Refereed]

  Scientific journal


• Electrically conductive polymer/rGO nanocomposite films at ambient temperature via miniemulsion polymerization using GO as surfactant

  Yasemin Fadil, Vipul Agarwal, Florent Jasinski, Stuart C. Thickett, Hideto Minami, Per B. Zetterlund

  Apr. 2019, Nanoscale, 11, 6566 - 6570, English

  [Refereed]

  Scientific journal


• Pickering miniemulsion polymerization using graphene oxide: Effect of addition of a conventional surfactant

  Yasemin Fadil, Florent Jasinski, Tien Wing Guok, Stuart C. Thickett, Hideto Minami, Per B. Zetterlund

  Polystyrene/graphene oxide (PSt/GO) nanocomposite latexes have been prepared by Pickering miniemulsion polymerization in the presence of the conventional surfactant sodium dodecyl sulfate (SDS) in order to investigate its influence on the polymerization mechanism. Miniemulsion polymerization of styrene can be conducted successfully using GO as the sole surfactant, but the polymerization rate is very low. In the presence of SDS, a significant rate enhancement is observed. It has been clarified that the presence of SDS leads to additional nucleation pathways besides monomer droplet nucleation, namely nucleation involving free GO sheets in the aqueous phase as well as homogeneous nucleation. These mechanistic pathways are consistent with the rate enhancement and the increase in molecular weight as well as experimentally observed particle distributions in the presence of SDS. The present results represent a significant step forward in terms of our understanding of the fundamental polymerization mechanism of this Pickering miniemulsion system, which will aid in the preparation of advanced nanocomposite materials based on polymers and graphene (oxide).

  Royal Society of Chemistry, Jun. 2018, Polymer Chemistry, 9(24) (24), 3368 - 3378, English

  [Refereed]

  Scientific journal


• Preparation and characterization of magnetic γ-Al2O3 ceramic nanocomposite particles with variable Fe3O4 content and modification with epoxide functional polymer

  Sadia Salsabil Bristy, Mohammad Abdur Rahman, Klaus Tauer, Hideto Minami, Hasan Ahmad

  Porous γ-alumina (γ-Al2O3) is one of widely used ceramic materials. To maximize the application potentials attempt was made to prepare multifunctional γ-Al2O3 ceramic composite particles following magnetization and then seeded polymerization with epoxide functional glycidyl methacrylate (GMA). γ-Al2O3 particles were first prepared by a modified sol-gel approach and then doped with variable content Fe3O4 nanoparticles. At higher Fe3O4 content the magnetite nanoparticles were oriented into needle like hairy structure basically grown from the surface of γ-Al2O3 particles. Before the seeded polymerization the magnetic γ-Al2O3 particles were modified with SiO2 layer to improve the compatibility with the PGMA layer. The produced multifunctional ceramic particles were named as γ-Al2O3/Fe3O4/SiO2/PGMA nanocomposite because one of the phases constituting Fe3O4 was in nano-size range. The produced nanocomposite particles possessed superparamagnetic properties and could be isolated from the dispersion medium by external magnetic field. Fourier Transform IR (FTIR) and X-ray photoelectron spectroscopic (XPS) data revealed that final nanocomposite particles contained reactive epoxide groups on or near the surface. The produced multifunctional γ-Al2O3 ceramic nanocomposite particles can be useful in biotechnology, catalysis and adsorbents for pollutant removal.

  Elsevier Ltd, Mar. 2018, Ceramics International, 44(4) (4), 3951 - 3959, English

  [Refereed]

  Scientific journal


• Epoxide Functional Temperature-Sensitive Semi-IPN Hydrogel Microspheres for Isolating Inorganic Nanoparticles

  H. Ahmad, M. M. Alam, M. A. Rahman, H. Minami, M. A. Gafur

  In this investigation, epoxide (oxirane), a cyclic ether with a three-atom ring, functional semi-interpenetrating polymer network (semi-IPN) hydrogel microspheres composed of temperature-sensitive poly(N-isopropylacrylamide-N,N-methylene-bis-acrylamide) (P(NIPAM-MBAAm)) and P(NIPAM-glycidyl methacrylate) (P(NIPAM-GMA)) are prepared. We called these microspheres as P(NIPAM-MBAAm)/P(NIPAM-GMA). The microspheres exhibited temperature-sensitive volume phase transition at a temperature range of 33–35°C. The chemical bonding of anticancer drugs with the epoxide ring increased the absorption capacity but their release is affected, as the temperature is decreased below the volume phase transition, studied under an in vitro condition suitable for application in the treatment of cancer cells. The epoxide functionality of semi-IPN hydrogel microspheres is also utilized to isolate inorganic nanoparticles, using Fe3O4 nanoparticles as an example, simply by blending the hydrogel and magnetic (Fe3O4) dispersions. The presence of strained oxirane ring derived from GMA segment induced high affinity for semi-IPN hydrogel microspheres toward magnetic Fe3O4 nanoparticles and eventually reduced the colloidal stability.

  John Wiley and Sons Inc., Feb. 2018, Advances in Polymer Technology, 37(1) (1), 94 - 103, English

  [Refereed]

  Scientific journal


• Zwitterionic poly(2-(methacryloyloxy) ethyl phosphorylcholine) coated mesoporous silica particles and doping with magnetic nanoparticles

  HOSSAN Taslima, ALAM Mohammad A, RAHMAN Mohammad A, SHARAFAT Mostafa K, MINAMI Hideto, GAFUR Muhammad A, HOQUE Sheikh M, AHMAD Hasan

  2018, Colloids Surfaces A: Physicochem. Eng. Aspects, 555, 80 - 87, English

  [Refereed]

  Scientific journal


• Morphology Control of Porous Cellulose Particles by Tuning the Surface Tension of Media during Drying

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  概要

  Corresponding, AMER CHEMICAL SOC, 2018, Langmuir, 34(50) (50), 15490 - 15494, English

  [Refereed]

  Scientific journal


• Mesoporous magnetic silica particles modified with stimuli-responsive P(NIPAM-DMA) valve for controlled loading and release of biologically active molecules

  TANJIM Mustahida, RAHMAN Mohammad A, RAHMAN Mohammad M, MINAMI Hideto, HOQUE Sheikh M, SHARAFAT Mostafa K, GAFUR Muhammad A, AHMAD Hasan

  2018, Soft Matter, 14, 5469 - 5479, English

  [Refereed]

  Scientific journal


• Evaluating the Performance of Citric Acid as Stabilizer and Doping Agent in an Environment Friendly Approach to Prepare Electromagnetic Nanocomposite Particles

  DEBNATH Mithun K, RAHMAN Mohammad A, TAUER Klaus, MINAMI Hideto, RAHMAN Mohammad M, GAFUR Muhammad A, AHMAD Hasan

  2018, Polymer Composites, 39, 4628 - 4636, English

  [Refereed]

  Scientific journal


• A Facile Method for Preparation of Polymer Particles Having a “Cylindrical” Shape

  LI Weii, SUZUKI Toyoko, MINAMI Hideto

  A facile and novel approach to prepare monodisperse polystyrene (PS) particles having a cylindrical shape was discovered. Spherical PS particles prepared by dispersion polymerization were stirred in a polyvinylpyrrolidone (PVP) aqueous solution for several hours using a magnetic stirrer at room temperature. In the presence of PVP, the spherical PS particles deformed into cylindrical shapes following stirring; however, the particles did not deform in the absence of PVP. The deformation rate of the particles was affected by the molecular weight of the dissolved PVP. This stirring method is not only highly efficient and high yielding, but also applicable to other materials such as polymethyl methacrylate. Moreover, the cylindrical particles were successfully applied as particulate surfactants in a Pickering emulsion system, which exhibited excellent stability in comparison to a system using spherical particles as a surfactant. In the first case, the emulsion was left standing for more than 4 months.

  Corresponding, WILEY-V C H VERLAG GMBH, 2018, Angew. Chem. Int. Ed, 57(31) (31), 9936 - 9940, English

  [Refereed]

  Scientific journal


• Core-shell structured epoxide functional NiO/SiO2 nanocomposite particles and photocatalytic decolorization of congo red aqueous solution

  Mosammat Sammi Akhtar, Mohammad Ashraful Alam, Klaus Tauer, Mohammad Shamim Hossan, Mostafa Kaiyum Sharafat, Mohammad Mahbubor Rahman, Hideto Minami, Hasan Ahmad

  Nickel oxide (NiO) nanoparticles are useful in many catalysis reactions because of large surface area, high adsorptive properties, fast diffusivities, low cost and additionally they possess special electric and magnetic properties. However, the application of bare NiO nanoparticles often suffers from poor colloidal stability and weak chemical inertness. To overcome the disadvantages this investigation described the preparation of a novel three-layered NiO/SiO2/poly(glycidyl methacrylate) nanocomposite particles abbreviated as NiO/SiO2/PGMA. The epoxide functionality derived from PGMA on the surface of NiO nanoparticles is expected to increase the absorption capacity of the substrate, a prime requirement for high catalytic performance. The formation of nanocomposite particles is confirmed by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), transmission electron microscope (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD) and thermogravimetric analyses (TGA). The produced NiO/SiO2/PGMA nancomposite particles possess core-shell type morphology with porous shell structure. The UV light driven photocatalytic degradation of congo red (CR), a water soluble azo dye, in presence of NiO/SiO2/PGMA nanocomposite particles is evaluated in terms of degradation efficiency and kinetics. Degradation efficiency decreased with the increase of initial CR concentration and a maximum efficiency of 100% is attained within 10 min when 10 mL of 40 mg L-1 CR aqueous solution is irradiated in presence of 0.01 g of NiO/SiO2/PGMA nanocomposite photocatalyst.

  ELSEVIER SCIENCE BV, Sep. 2017, COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 529, 783 - 792, English

  [Refereed]

  Scientific journal


• Synthesis of polymeric nano-objects of various morphologies based on block copolymer self-assembly using microporous membranes

  Sri Agustina, Masayoshi Tokuda, Hideto Minami, Cyrille Boyer, Per B. Zetterlund

  Membrane emulsification entails the use of two immiscible liquids for preparation of oil-in-water or water-in-oil emulsions of well-defined droplet size. In this work, we have developed a novel approach for preparation of polymeric nano-objects of various morphologies based on self-assembly of diblock copolymers in tandem with microporous membrane technology (Shirasu porous glass (SPG) membranes). Diblock copolymers poly(oligoethylene glycol acrylate)-b-poly(styrene) (POEGA-b-PSt) comprising different block lengths were prepared by RAFT polymerization. Self-assembly using SPG membrane technology was subsequently conducted by first dissolving the polymer in tetrahydrofuran, followed by continuous passage of this copolymer solution through the membrane pores into the aqueous phase. The results indicate that it is possible to conveniently tune the nano-object morphology via the process parameters of pressure and pore size for a given formulation. The technique also holds promise with regards to high throughput, in particular in the case of vesicles.

  ROYAL SOC CHEMISTRY, Aug. 2017, REACTION CHEMISTRY & ENGINEERING, 2(4) (4), 451 - 457, English

  [Refereed]

  Scientific journal


• Preparation of disk-like cellulose particles

  Kaori Imagawa, Taro Omura, Yasuhito Ihara, Kyosuke Kono, Toyoko Suzuki, Hideto Minami

  Disk-like cellulose particles were facilely prepared by stirring a dispersion of spongy cellulose particles that were prepared with a solvent-releasing method (SRM) with a magnetic stir bar. The obtained particles were thick and disk-like and retained their spongy structure in the wet state. The thick, disk-like particles became thinner in a specific direction upon drying because of capillary force. In contrast, when the same procedure was conducted using cellulose particles with dense structures, the particle shapes were not deformed, and disk-like shapes did not appear. Moreover, when the stirring was carried out using a shaking bath or a touch mixer, the shape transformation was not observed. These results suggest that the spongy structure of the cellulose particles would be a pseudo-plasticization state, which can cause the cellulose particles to deform. The disk-like particles formed as a result of the grinding of spongy cellulose particles between the stir bar and the vial. The number of disk-like particles and the degree of deformation increased with increasing of the stirring time, the speed and the contact area.

  Corresponding, SPRINGER, Aug. 2017, CELLULOSE, 24(8) (8), 3111 - 3118, English

  [Refereed]

  Scientific journal


• Biocompatible microcrystalline cellulose particles from cotton wool and magnetization via a simple in situ co-precipitation method

  Mehnaz Rashid, Mohammad Abdul Gafur, Mostafa Kaiyum Sharafat, Hideto Minami, Mohd Abdul Jalil Miah, Hasan Ahmad

  This investigation describes the preparation of magnetically doped degradable microcrystalline cellulose (MCC) nanocomposite particles with application potential in biotechnology, solid support for biomolecule/water purification, oil recovery from water and beyond. MCC was first extracted from cotton wool, the most abundant biocompatible polymer, by sulfuric acid hydrolysis and the effect of acid strength was examined. The size of the elongated fiber structure was reduced with increasing acid strength. MCC particles extracted by treatment with 70% sulfuric acid were used to prepare magnetic MCC nanocomposite particles. The nanocomposite particles named as MCC/Fe3O4 were prepared via in situ co-precipitation of Fe+3/Fe+2 from their alkaline solution. The precipitated Fe3O4 nanoparticles are expected to be bonded with MCC particles via hydrogen bonding. The nanocomposite dispersion was colloidally stable and the particles responded when external magnetic field was applied. It was possible to control the magnetic property by regulating the content of iron oxide. (C) 2017 Elsevier Ltd. All rights reserved.

  ELSEVIER SCI LTD, Aug. 2017, CARBOHYDRATE POLYMERS, 170, 72 - 79, English

  [Refereed]

  Scientific journal


• Magnetite Loaded Cross-linked Polystyrene Composite Particles Prepared by Modified Suspension Polymerization and Their Potential Use as Adsorbent for Arsenic(III)

  Hasan Ahmad, Mostafa Kaiyum Sharafat, Mohammad Ashraful Alam, Mohammad Mahbubor Rahman, Klaus Tauer, Hideto Minami, Mosammat Sharmin Sultana, Basudev Kumar Das, Rukhsana Shabnam

  Magnetic particles have attracted much interest because they can be easily guided under the influence of magnetic field and are considered suitable in biomedical as well as in separation technology. In this work, magnetite (Fe3O4) loaded cross-linked polystyrene (PS) composite particles are prepared by a novel suspension polymerization of styrene and divinylbenzene (DVB) in presence of nanosized iron oxide (Fe3O4) particles dispersed in n-octane. The structure and surface properties are systematically characterized using FTIR, scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and thermogravimetric analyses (TGA). The morphology and surface structure reveal that Fe3O4 nanoparticles are mostly dispersed within the P(S-DVB) copolymer layer. Finally the applicability of Fe3O4/P(S-DVB) composite polymer particles as adsorbent for toxic element like trivalent arsenic (As) has been investigated. Fe3O4/P(S-DVB) composite polymer particles exhibited good sorption efficiency compared to reference P(S-DVB) copolymer particles.

  SPRINGER, Jul. 2017, MACROMOLECULAR RESEARCH, 25(7) (7), 671 - 679, English

  [Refereed]

  Scientific journal


• Formation of Homogeneous Nanocomposite Films at Ambient Temperature via Miniemulsion Polymerization Using Graphene Oxide as Surfactant

  Yasemin Fadil, S. H. Che Man, Florent Jasinski, Hideto Minami, Stuart C. Thickett, Per B. Zetterlund

  A convenient and industrially scalable method for synthesis of homogeneous nanocomposite films comprising poly(styrene-stat-butyl acrylate) and nanodimensional graphene oxide (GO) or reduced GO (rGO) is presented. Importantly, the nanocomposite latex undergoes film formation at ambient temperature, thus alleviating any need for high temperature or high pressure methods such as compression molding. The method entails synthesis of an aqueous nanocomposite latex via miniemulsion copolymerization relying on nanodimensional GO sheets as sole surfactant, followed by ambient temperature film formation resulting in homogeneous film. For comparison, a similar latex obtained by physical mixing of a polymer latex with an aqueous GO dispersion results in severe phase separation, illustrating that the miniemulsion approach using GO as surfactant is key to obtaining homogeneous nanocomposite films. Finally, it is demonstrated that the GO sheets can be readily reduced to rGO in situ by heat treatment of the film. (C) 2017 Wiley Periodicals, Inc.

  WILEY, Jul. 2017, JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 55(14) (14), 2289 - 2297, English

  [Refereed]

  Scientific journal


• Emulsion Polymerization with a Biosurfactant

  Aya Kurozuka, Shohei Onishi, Takuto Nagano, Katsumi Yamaguchi, Toyoko Suzuki, Hideto Minami

  Emulsion polymerization of styrene was conducted using a biosurfactant (i.e., sodium surfactin, hereinafter 30 called just "surfactin") having very low critical micelle concentration (CMC, 2.9 X 10(-3) rnmol/L) and biodegradability characteristics. The nucleation mechanism was investigated by comparing with a conventional surfactant sodium dodecyl sulfate) system. Unlike the emulsion polymerization systems using conventional surfactants, nucleation mechanisms changed above CMC in the presence of a biosurfactant. At low concentrations of surfactin (above CMC), the polystyrene (PS) particles are likely generated via a soap-free emulsion polymerization mechanism. In contrast, at high surfactin concentrations, the PS particles would be synthesized by following a micellar nucleation mechanism. However, the slope (0.23) of the log N-p versus log C-s plot (N-p: number of particles; C-s: concentration of surfactin) did not obey the Smith Ewart theory (0.6), this probably being produced by the high adsorbability of surfactin.

  Corresponding, AMER CHEMICAL SOC, Jun. 2017, LANGMUIR, 33(23) (23), 5814 - 5818, English

  [Refereed]

  Scientific journal


• Morphological change of thermosensitive imidazolium-based poly(ionic liquid)/poly(phenylethylmethacrylate) composite particles

  Masayoshi Tokuda, Toyoko Suzuki, Hideto Minami

  Composite particles comprising poly(2-phenylethyl methacrylate) (PPhEMA) and imidazolium-based poly(ionic liquid)s were prepared by suspension polymerization of 1-vinyl-3-ethylimidazolium bis(trifluoromethanesulfonyl)amide as an ionic liquid monomer with dissolved PPhEMA. Not only PPhEMA exhibits lower critical solution temperature (LCST) behavior in 1-vinyl-3-ethylimidazolium bis(trifluoromethanesulfonyl)amide but also the polymer blend in the bulk state exhibited LCST behavior. However, the composite polymer particles obtained after polymerization at 70 degrees C maintained a homogeneous inner structure after heat treatment as the polymerization temperature was greater than the LCST in this system due to the formation of a cross-linked structure during polymerization. When the composite particles were prepared by suspension polymerization at 30 degrees C, their inner morphology changed from homogeneous to phase separated during the subsequent heat treatment. Moreover, the morphology transformation of the composite particles was dependent on the PPhEMA molecular weight. Copyright (c) 2016 John Wiley & Sons, Ltd.

  Corresponding, WILEY, Apr. 2017, POLYMERS FOR ADVANCED TECHNOLOGIES, 28(4) (4), 470 - 475, English

  [Refereed]

  Scientific journal


• Preparation of Flattened Cross-Linked Hollow Particles by Suspension Polymerization in a Solid Dispersion Medium

  Hideto Minami, Akihiro Kojima, Toyoko Suzuki

  Flattened cross-linked hollow poly(divinylbenzene) (PDVB) particles with encapsulated n-hexadecane (HD) were successfully prepared through suspension polymerization using the self -assembling of phase-separated polymer (SaPSeP) method, in which the solid dispersion medium was gelled by gellan gum and compressed. The solid phase induced by gellan gum can be easily changed to a liquid state by heating, allowing the obtained particles to be easily recovered after polymerization. When the polymerization was conducted in the solid dispersion medium without compression, spherical hollow PDVB/HD composite particles were obtained. In contrast, when the polymerization was conducted with the compression of the solid dispersion medium, flattened hollow PDVB/HD composite particles were obtained. The shape of the flattened hollow polymer particles was controlled by changing the compression ratio of the solid phase, and the size could also be controlled by changing the DVB/HD droplet size using the Shirasu porous glass membrane-emulsification technique. Furthermore, flattened hollow particles larger than 20 mu m in size were obtained, but it was difficult to obtain spherical hollow particles of such large size using the SaPSeP method.

  AMER CHEMICAL SOC, Feb. 2017, LANGMUIR, 33(6) (6), 1541 - 1546, English

  [Refereed]

  Scientific journal


• Dispersion Polymerization of L-Lactide Utilizing Ionic Liquids as Reaction Medium

  Sri Fahmiati, Hideto Minami, Agus Haryono, Indri B. Adilina

  Dispersion polymerization of L-lactide was proceeded in various ionic liquids. Ionic liquids as 1-Hexyl-3-methylimidazolium bis (trifluormethylsulfonyl) imide, [HMIM] [TFSI], 1-Butyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide, [BMP] [TFSI], and N,N,N-Trimethyl-N-Propylammonium Bis (trifloromethanesulfonyl) imide, [TMPA] [TFSI], were employed as reaction medium that dissolved both of lactide and stabilizer (polyvinylprrolidone). Sn-supported on bentonite was used as a ring opening catalyst of L-lactide. Gel Permeation Chromatography result showed that poly-(L-lactic acid) were formed in ionic liquids [HMIM] [TFSI] and [BMP] [TFSI] with molecular weight as 19390 and 20844, respectively.

  AMER INST PHYSICS, 2017, PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM ON APPLIED CHEMISTRY (ISAC) 2017, 1904, 020037(1 - 8), English

  [Refereed]

  International conference proceedings


• Encapsulation of Either Hydrophilic or Hydrophobic Substances in Spongy Cellulose Particles

  Taro Omura, Kaori Imagawa, Kyosuke Kono, Toyoko Suzuki, Hideto Minami

  We have reported cellulose particles with a spongy structure that we prepared by the solvent releasing method (SRM) from cellulose droplets composed of cellulose, 1-butyl-3-methylimidazoliumchrolide ([Bmim] Cl), and N,N-dimethylformamide (DMF). The spongy structure collapsed as the medium evaporated, resulting in dense cellulose particles. In this study, we encapsulated the hydrophilic and hydrophobic fluorescent substances in these particles to investigate the use of such particles in potential applications that require encapsulating of substances (e.g., drug delivery). Wet cellulose particles retained their spongy structure in both hydrophobic and hydrophilic media. When the spongy cellulose particles were dispersed in a solution containing nonvolatile solutes, these solutes were driven into the cellulose particles as media evaporated. Subsequently, the cellulose particles collapsed and encapsulated the nonvolatile solutes. Regardless of whether the solute was hydrophilic or hydrophobic, the encapsulation efficiency exceeds 80%. The maximum loading reflected the saturated solubility of solute in solution that filled the cellulose beads. Moreover, the encapsulated solute was released by dispersing the cellulose beads in the solvent, and the rate of release of the encapsulated solute could be controlled by coating the cellulose beads with a conventional polymer.

  Corresponding, AMER CHEMICAL SOC, Jan. 2017, ACS APPLIED MATERIALS & INTERFACES, 9(1) (1), 944 - 949, English

  [Refereed]

  Scientific journal


• Novel carboxyl functional spherical electromagnetic polypyrrole nanocomposite polymer particles with good magnetic and conducting properties

  Hasan Ahmad, Mohammad A. Ali, Mohammad M. Rahman, Mohammad A. Alam, Klaus Tauer, Hideto Minami, Rukhsana Shabnam

  Magnetic conducting nanoparticles with reactive functional groups are attractive materials for applications in electromagnetic interference shielding, magneto-optical storage, biomedical sensing, gas and humidity sensors, flexible electronics etc. The objective of this work was to prepare carboxyl functionalized polypyrrole (PPy) nanocomposite particles having good magnetic properties. Electromagnetic PPy nanostructures, abbreviated as PPy/-Fe2O3, were first prepared by a chemical one-step method. In this reaction process FeCl3 is used as an oxidant for the polymerization of pyrrole and as a source of Fe3+ for the formation of -Fe2O3. The formation of -Fe2O3 is also aided by the initial presence of Fe2+, and p-toluenesulfonic acid (p-TSA) acted as a dopant. The effects of different stabilizers on the stability and morphology of PPy/-Fe2O3 particles were evaluated. The presence of citric acid/sodium dodecyl sulfate during chemical oxidative polymerization produced a relatively stable PPy/-Fe2O3 colloidal emulsion. PPy/-Fe2O3/poly(methylmethacrylate-methacrylic acid) (PPy/-Fe2O3/P(MMA-MAA)) nanocomposite polymer particles were then prepared by the seeded copolymerization of MMA and MAA in the presence of magnetic PPy/-Fe2O3 nanocomposite seed particles. The structure and morphology of the prepared nanocomposites were confirmed by different instrumental techniques such as Fourier transform IR spectroscopy, UV-visible spectroscopy, electron micrographs, XRD and X-ray photoelectron spectroscopy. The electrical and magnetic properties were also investigated. The carboxyl functional electromagnetic PPy nanocomposite polymer particles should be useful for the immobilization of drugs or biomolecules to design electrically stimulated drug delivery systems for modulating the activities of nerve, cardiac, skeletal muscle and bone cells. (c) 2016 Society of Chemical Industry

  WILEY-BLACKWELL, Oct. 2016, POLYMER INTERNATIONAL, 65(10) (10), 1179 - 1186, English

  [Refereed]

  Scientific journal


• A simple route to synthesize conductive stimuli-responsive polypyrrole nanocomposite hydrogel particles with strong magnetic properties and their performance for removal of hexavalent chromium ions from aqueous solution

  Hasan Ahmad, Mohammad Mostafizar Rahman, Mohammad Azgar Ali, Hideto Minami, Klaus Tauer, Mohammad Abdul Gafur, Mohammad Mahbubor Rahman

  A combination of maghemite polypyrrole (PPy/gamma-Fe2O3) and stimuli-responsive properties in the same hydrogel microspheres is expected to enhance their application potential in various fields such as tissue engineering, regenerative medicine, biosensors, biomedical applications and removal of heavy metals from waste water, catalysis etc. In this investigation a simple two step process is used to prepare conductive stimuli-responsive polypyrrole (PPy) composite hydrogel particles with strong magnetic properties. Poly(styrene-methacrylic acid-N-isopropylacrylamide-polyethelene glycol methacrylate) or P(S-NIPAM-MAA-PEGMA) hydrogel seed particles are first prepared by soap-free precipitation copolymerization. The copolymer hydrogel particles exhibited both temperature- and pH-responsive volume phase transition. Conductive P(S-NIPAM-MAA-PEGMA)/PPy/gamma-Fe2O3 nanocomposite hydrogel particles are then prepared by seeded chemical oxidative polymerization of pyrrole in the presence of P(S-NIPAM-MAA-PEGMA) hydrogel seed particles using FeCl3 as a oxidant and p-toluene sulfonic acid (p-TSA) as a dopant. In the reaction system FeCl3 functioned as a source of Fe(III) for the formation of gamma-Fe2O3. This reaction also requires the initial presence of Fe(II) provided by the addition of FeCl2. The size and size distribution, surface structure, and morphology of the prepared conductive composite hydrogel particles are confirmed by FTIR, electron micrographs, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and UV-visible spectroscopy. The performance of nanocomposite hydrogel particles has been evaluated for the removal of hexavalent chromium (Cr) ions from water. (C) 2016 Elsevier B.V. All rights reserved.

  ELSEVIER SCIENCE BV, Aug. 2016, JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 412, 15 - 22, English

  [Refereed]

  Scientific journal


• Interfacial Synthetic Approach for Constructing Metal-Organic Framework Crystals Using Metal Ion-Doped Polymer Substrate

  Takaaki Tsuruoka, Misato Kumano, Koji Mantani, Tetsuhiro Matsuyama, Ayumi Miyanaga, Takashi Ohhashi, Yohei Takashima, Hideto Minami, Toyoko Suzuki, Kaori Imagawa, Kensuke Akamatsu

  We report a new paradigm for the synthesis of metal organic framework (MOP) crystals with controlled thickness by utilizing interfacial self-assembly of frameworks on metal ion-doped polymer precursors. The approach involves preparation of metal ion-doped polymer precursors through ion-exchange reactions and synthesis of MOF crystals by immersion into solutions containing organic ligands. The thickness of the resulting MOF crystals can be readily controlled by the number of doped-metal ions in the polymer precursors. MOF crystals could be very important and potentially useful for applications, and the present approach based on interfacial self-assembly could significantly advance MOF crystal preparation techniques.

  AMER CHEMICAL SOC, May 2016, CRYSTAL GROWTH & DESIGN, 16(5) (5), 2472 - 2476, English

  [Refereed]

  Scientific journal


• Preparation of Poly(ionic liquid) Hollow Particles with Switchable Permeability

  Ryuma Nakamura, Masayoshi Tokuda, Toyoko Suzuki, Hideto Minami

  Poly(ionic liquid) (PIL) particles with a single-hollow structure are prepared by suspension polymerization from monomer droplets consisting of the hydrophobic ionic liquid monomer [2-(methacryloyloxy)ethyl]trimethylammonium bis(trifluoromethanesulfonyl)amide, ethylene glycol dimethacrylate, and n-butyl acetate containing dissolved poly(n-butyl methacrylate). The obtained PIL hollow particles' shells can be changed from hydrophobic to hydrophilic by anion exchange using a LiBr/ethanol solution. In the case of hydrophilic PIL hollow particles, the water-soluble fluorescent materials can penetrate into the hollow structure, whereas in the case of hydrophobic PIL hollow particles, penetration of the fluorescent materials is restricted. In addition, the encapsulated water-soluble materials can be preserved into the hollow part by changing the shell property of the PIL particle encapsulated with the water-soluble materials from hydrophilic to hydrophobic.

  Corresponding, AMER CHEMICAL SOC, Mar. 2016, LANGMUIR, 32(10) (10), 2331 - 2337, English

  [Refereed]

  Scientific journal


• Preparation of Polymer Particles Containing Reduced Graphene Oxide Nanosheets Using Ionic Liquid Monomer

  Masayoshi Tokuda, Stuart C. Thickett, Hideto Minami, Per B. Zetterlund

  The preparation of polymer nanoparticles containing reduced graphene oxide nanosheets (rGO) within their interior has been conducted by radical polymerization in aqueous miniemulsion employing the nonionic surfactant Tween 80. Polymerizations were conducted using the ionic liquid monomer 1-vinyl-3-ethylimidazolium bis(trifluoromethanesulfonyl)amide ( [Veim] [TFSA]) as well as mixtures of this monomer with ethyl methacrylate (EMA). [Veim] [TFSA] plays an important role in that it provides stabilization of rGO monomer dispersions, presumably via pi-pi interactions between rGO and [Veim][TFSA]. If the EMA: [Veim] [TFSA] ratio is too high, rGO precipitates during preparation of the monomer phase of the miniemulsion. Interestingly, it was demonstrated that addition of a small amount of the homopolymer of [Veim] [TFSA] leads to significantly improved rGO stability (more so than the effect of [Veim] [TFSA] monomer), thus enabling preparation of polymer nanoparticles containing higher amounts of EMA.

  Corresponding, AMER CHEMICAL SOC, Feb. 2016, MACROMOLECULES, 49(4) (4), 1222 - 1228, English

  [Refereed]

  Scientific journal


• Synthesis of polymeric nanoparticles containing reduced graphene oxide nanosheets stabilized by poly(ionic liquid) using miniemulsion polymerization

  Masayoshi Tokuda, Mitsuyoshi Yamane, Stuart C. Thickett, Hideto Minami, Per B. Zetterlund

  Polymeric nanoparticles containing reduced graphene oxide (rGO) nanosheets have been prepared by aqueous miniemulsion radical polymerization of methyl methacrylate (MMA) utilizing poly(ionic liquid) (PIL) as stabilizer to effectively disperse the rGO nanosheets in the monomer phase. The PIL that gave the best results in terms of rGO dispersibility was a block copolymer of the ionic liquid monomer 1-(2-methacryloyloxyethyl)- 3-butylimidazolium bis(trifluoromethanesulfonyl) amide ([Mbim][TFSA]) and MMA, the concept being that the MMA units impart solubility in the MMA monomer droplets whereas the IL units act as adsorption sites for rGO. The rGO dispersibility in vinyl monomer was demonstrated to be superior using the above PIL block copolymer compared to the corresponding statistical copolymer or PIL homopolymer. Overall, the approach developed demonstrates how PILs can be employed to conveniently switch (turn ON/OFF) the dispersibility of PIL/rGO via anion exchange reactions, which can be an efficient strategy for synthesis of polymer/rGO nanocomposite materials.

  Corresponding, ROYAL SOC CHEMISTRY, 2016, SOFT MATTER, 12(17) (17), 3955 - 3962, English

  [Refereed]

  Scientific journal


• Preparation of poly(ionic liquid) composite particles and function modification with anion exchange

  Masayoshi Tokuda, Tatsunori Shindo, Toyoko Suzuki, Hideto Minami

  Seeded dispersion polymerization of an ionic liquid monomer ([2-(methacryloyloxy)ethyl]trimethylammonium bis(trifluoromethanesulfonyl)amide) ([MTMA][TFSA]) was carried out in the presence of poly(methylmethacrylate) (PMMA), poly(ethyl methacrylate) (PEMA), and poly(t-butyl methacrylate) (PtBMA) as seed particles in a methanol/water mixture. For PMMA and PEMA seed particles, composite particles with poly(ionic liquid) (PIL) were obtained. In contrast, for PtBMA seed particles, secondary nucleated PIL particles were formed and no PtBMA/PIL composite particles were obtained. These results were also predicted by theoretical consideration based on the spreading coefficients calculated from the interfacial tensions. Moreover, we showed that anion exchange of the PIL-core in the PIL/cross-liked PMMA core-shell composite particles from TFSA to Br and FeCl4 anions can be used to modify the properties of only the core component of the composite particles.

  Corresponding, ROYAL SOC CHEMISTRY, 2016, RSC ADVANCES, 6(37) (37), 31574 - 31579, English

  [Refereed]

  Scientific journal


• Highly Conductive Ionic-Liquid Gels Prepared with Orthogonal Double Networks of a Low-Molecular-Weight Gelator and Cross-Linked Polymer

  Toshikazu Kataoka, Yumi Ishioka, Minoru Mizuhata, Hideto Minami, Tatsuo Maruyama

  We prepared a heterogeneous double-network (DN) ionogel containing a low-molecular-weight gelator network and a polymer network that can exhibit high ionic conductivity and high mechanical strength. An imidazolium-based ionic liquid was first gelated by the molecular self-assembly of a low-molecular-weight gelator (benzenetricarboxamide derivative), and methyl methacrylate was polymerized with a cross-linker to form a cross-linked poly(methyl methacrylate) (PMMA) network within the ionogel. Microscopic observation and calorimetric measurement revealed that the fibrous network of the low-molecular-weight gelator was maintained in the DN ionogel. The PMMA network strengthened the ionogel of the low-molecular-weight gelator and allowed us to handle the ionogel using tweezers. The orthogonal DNs produced ionogels with a broad range of storage elastic moduli. DN ionogels with low PMMA concentrations exhibited high ionic conductivity that was comparable to that of a neat ionic liquid. The present study demonstrates that the ionic conductivities of the DN and single-network, low-molecular-weight gelator or polymer ionogels strongly depended on their storage elastic moduli.

  AMER CHEMICAL SOC, Oct. 2015, ACS APPLIED MATERIALS & INTERFACES, 7(41) (41), 23346 - 23352, English

  [Refereed]

  Scientific journal


• A generalized technique for the encapsulation of nano-sized NiO particles by styrene-2-hydroxyethyl methacrylate copolymer

  M. Shamim Hossan, M. Abdur Rahman, Klaus Tauer, Hideto Minami, Hasan Ahmad

  Encapsulation of nickel oxide (NiO) particles is of great interest to the researchers as such modification produces remarkable improvement in properties and versatility in application potential. In this investigation, nano-sized NiO particles were first prepared by calcination of nickel hydroxide precursor obtained using a simple liquid-phase process. The produced NiO particles were stabilized with oleic acid and then treated with tetraethylorthosilicate to produce NiO/SiO2 composite seed particles. Finally tri-layered inorganic/organic composite particles were prepared by seeded copolymerization of styrene and 2-hydroxyethyl methacrylate (HEMA) in the presence of NiO/SiO2 composite seed particles. The produced composite particles named as NiO/SiO2/P(S-HEMA) were colloidally stable, and the obtained particles were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and thermogravimetric analyses. Copyright (C) 2015 John Wiley & Sons, Ltd.

  WILEY-BLACKWELL, Sep. 2015, POLYMERS FOR ADVANCED TECHNOLOGIES, 26(9) (9), 1047 - 1052, English

  [Refereed]

  Scientific journal


• Metal nanocrystal/metal-organic framework core/shell nanostructure from selective self-assembly induced by localization of metal ion precursors on nanocrystal surface

  Takashi Ohhashi, Takaaki Tsuruoka, Tetsuhiro Matsuyama, Yohei Takashima, Hidemi Nawafune, Hideto Minami, Kensuke Akamatsu

  Metal nanocrystal/metal-organic framework core/shell nanostructures have been constructed using metal ion-trapped nanocrystals as scaffolds through a selective self-assembly of framework components on the nanocrystal surfaces. The resulting nanostructures exhibit unique catalytic activity toward nitrophenol analogs. (C) 2015 Elsevier Inc. All rights reserved.

  ACADEMIC PRESS INC ELSEVIER SCIENCE, Aug. 2015, JOURNAL OF COLLOID AND INTERFACE SCIENCE, 451, 212 - 215, English

  [Refereed]

  Scientific journal


• Precipitation polymerization in mixed monomer-solvent droplets

  Rukhsana Shabnam, Klaus Tauer, Hideto Minami, Hasan Ahmad

  This contribution reports the precipitation copolymerization of lauryl methacrylatedivinylbenzene (LMADVB) in stable isolated droplets dispersed in water. The droplets contain either n-hexadecane (HD) or HDtoluene (HDT) or toluene as a nonsolvent for the resulting P(LMADVB) copolymer. The polymerization proceeds smoothly with an appreciably high content of DVB without the formation of coagulum and thus proves the quite high stability of the droplet reactors. The differences in the interaction between the nonsolventcopolymer combinations allow the variation of the internal morphology of the particles between core and shell type, highly porous, and solid sphere. (C) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41881.

  WILEY-BLACKWELL, Apr. 2015, JOURNAL OF APPLIED POLYMER SCIENCE, 132(16) (16), 41881 - 7, English

  [Refereed]

  Scientific journal


• Preparation of Thermosensitive “Snowman-like” Composite Gel Particles Incorporating an Ionic Liquid

  MINAMI Hideto, ICHIKAWA Hiroko, SUZUKI Toyoko

  概要

  発行機関名, 2015, J. Adhesion Soc. Jpn, 51, 225 - 226, English

  [Refereed]

  Scientific journal


• Influence of the molecular-oriented structure of ionic liquids on the crystallinity of aluminum hydroxide prepared by a sol-gel process in ionic liquids

  K. Kinoshita, H. Yanagimoto, T. Suzuki, H. Minami

  The influence of the structure of ionic liquids on the crystallinity of aluminum hydroxide (Al(OH)(3)) prepared by a sol-gel process with aluminum isopropoxide (Al(OPri)(3)) in imidazolium-based ionic liquids was investigated. When Al(OH)(3) was prepared in ionic liquids having long alkyl chains, such as 1-butyl-3-methylimidazolium salts and 1-methyl-3-octylimidazolium salts, highly crystalline products were obtained. In contrast, Al(OH)(3) obtained using the 1-ethyl-3-methylimidazolium salt was an amorphous material, indicating that hydrophobic interaction of the alkyl tail of the imidazolium cation of the ionic liquid strongly affects the crystallinity of sol-gel products and the local structure of the ionic liquid. Moreover, the crystallinity of Al(OH)(3) prepared in ionic liquids increased relative to the amount of additional water (ionic liquid/water = 1.28/2.0-3.5/0.2, w/w). In the case of addition of a small amount of water (ionic liquid/water = 3.5/0.2, w/w), the product was amorphous. These results implied that the presence of an ionic liquid and a sufficient amount of water was crucial for the successful synthesis of sol-gel products with high crystallinity. H-1 NMR analyses revealed a shift of the peak associated with the imidazolium cation upon addition of water, which suggested that the molecular orientation of the ionic liquid was similar to that of a micelle.

  Corresponding, ROYAL SOC CHEMISTRY, 2015, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 17(28) (28), 18705 - 18709, English

  [Refereed]

  Scientific journal


• Control of Morphology of ‘Rattle’-like Particles Prepared by One-step Suspension Polymerization

  SUZUKI Toyoko, OSUMI Ayumi, MINAMI Hideto

  2015, J. Adhesion Soc. Jpn, 51, 233 - 234, English

  [Refereed]

  Scientific journal


• Preparation of Janus Particles with Different Stabilizers and Formation of One-Dimensional Particle Arrays

  Shohei Onishi, Masayoshi Tokuda, Toyoko Suzuki, Hideto Minami

  Janus particles with two hemispheres having different stabilizers, a polystyrene (PS) phase stabilized by poly(acrylic acid) (PAA) (PSPAA) and a poly(methyl methacrylate) (PMMA) phase stabilized by poly(vinylpyrrolidone) (PVP) (PMMA(PVP)), were synthesized by the solvent-absorbing/releasing method of PSPAA/PMMA(PVP) composite particles with a core-shell structure. The PSPAA/PMMAPVP composite particles were prepared by seeded dispersion polymerization of MMA using PVP as stabilizer in the presence of PS seed particles stabilized by PAA. We also demonstrated the facile formation of the colloidal chains via hydrogen bonding interaction between different stabilizers.

  Corresponding, AMER CHEMICAL SOC, Jan. 2015, LANGMUIR, 31(2) (2), 674 - 678, English

  [Refereed]

  Scientific journal


• Magnetically doped multi stimuli-responsive hydrogel microspheres with IPN structure and application in dye removal

  Hasan Ahmad, Mohammad Nurunnabi, Mohammad Mahbubor Rahman, Kishor Kumar, Klaus Tauer, Hideto Minami, Mohammad Abdul Gafur

  Interpenetrating polymer network (IPN) hydrogel microspheres composed of temperature-sensitive crosslinked poly(N-isopropylacrylamide) (PNIPAM) and pH-sensitive crosslinked poly(methacrylic acid) (PMAA) are prepared by sequential polymerization method. The IPN hydrogel microspheres are characterized for their temperature- and pH-responsive behaviors by measuring the variation of hydrodynamic diameters. The results showed that these hydrogel microspheres exhibited both temperature- and pH-sensitive volume phase transitions. The structure and properties are systematically characterized using FTIR, H-1-NMR, transmission electron microscope (TEM), scanning electron microscope (SEM), differential scanning calorimetry (DSC) and thermo-gravimetric analyses (TGA). IPN hydrogel microspheres are then magnetically doped by in-situ formation of Fe3O4 nanoparticles. The adsorption/desorption of various dyes and subsequent separation of dye loaded magnetic hydrogel microspheres from the aqueous medium are studied under the influence of magnetic field. (C) 2014 Elsevier B.V. All rights reserved.

  ELSEVIER SCIENCE BV, Oct. 2014, COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 459, 39 - 47, English

  [Refereed]

  Scientific journal


• One-step synthesis of "rattle-like" polymer particles via suspension polymerization

  T. Suzuki, A. Osumi, H. Minami

  Multiple polymer particles encapsulated in a polymer shell are applied in electrophoretic ink. We demonstrate a simple one-step polymerization of polymer capsules containing small particles (rattle-like particles). In the obtained capsules, encapsulated particles independently dispersed and moved in response to the electric field.

  ROYAL SOC CHEMISTRY, Sep. 2014, CHEMICAL COMMUNICATIONS, 50(69) (69), 9921 - 9924, English

  [Refereed]

  Scientific journal


• Preparation of Submicrometer-Sized Quaternary Ammonium-Based Poly(ionic liquid) Particles via Emulsion Polymerization and Switchable Responsiveness of Emulsion Film

  Masayoshi Tokuda, Toshiharu Sanada, Tatsunori Shindo, Toyoko Suzuki, Hideto Minami

  Emulsion polymerization of ionic liquid monomer [2-(methacryloyloxy)ethyl]trimethylammonium bis(trifluoromethanesulfonyl)amide ([MTMA][TFSA]) was performed. In the presence of potassium persulfate and sodium dodecyl sulfate as the ionic initiator and emulsifier, respectively, the system was colloidally unstable and coagulated, owing to anion exchange between the ionic liquid monomer and ionic emulsifier. When a nonionic initiator and emulsifier were used (2,2'-azobis 2-methyl-[1,1-bis(hydroxymethyl)-2-hydroxyethylpropionamide]; VA-080, polyoxyethylenesorbitan monooleate; Tween 80, respectively), a stable emulsion was obtained without coagulation, and the zeta potential of the prepared particles exhibited a high positive charge. Utilizing this surface charge, poly([MTMA][TFSA]) (PIL) particles were then successfully prepared via emulsifier-free emulsion polymerization without an ionic initiator. Moreover, the contact angle of water on the PIL emulsion film (emulsifier-free emulsion polymerization) was found to be similar to 70 degrees (static measurement), indicating that the surface of the PIL film was relatively hydrophobic. The retreating contact angle (similar to 28 degrees) also indicated water wettability. However, when water was dropped on the PIL film just after the water already on the surface had completely retreated, the PIL film was instantaneously hydrophobic again. This result suggests that responsiveness of the PIL emulsion film was switchable between hydrophobic (in air) and hydrophilic (in water).

  Corresponding, AMER CHEMICAL SOC, Apr. 2014, LANGMUIR, 30(12) (12), 3406 - 3412, English

  [Refereed]

  Scientific journal


• Preparation of cellulose particles using an ionic liquid

  Toyoko Suzuki, Kyosuke Kono, Kengo Shimomura, Hideto Minami

  Cellulose is a ubiquitous natural fiber used in various industrial materials and applications. We prepared micron-sized cellulose particles by the solvent releasing method (SRM) in which cellulose-[Bmim]Cl-N,N-dimethylformamide (DMF) droplets are dispersed in hexadecane (HD) containing dissolved surfactant. The dispersion is then poured into a large amount of 1-butanol. Since 1-butanol is miscible with HD, [Bmim]Cl, and DMF but not with cellulose, the cellulose particles precipitate out. FOR and H-1 NMR analyses confirmed that this technique precipitated cellulose and completely removed [Bmim]Cl and DMF from the cellulose-[Bmim]Cl-DMF droplets. Interestingly, the obtained cellulose particles were almost the same size as the original droplets (cellulose, 7 wt%), indicating a microporous structure of the cellulose particles with a large medium content. Although the microporous structure collapsed as the medium evaporated, it was maintained by a freeze-drying technique. (C) 2013 Elsevier Inc. All rights reserved.

  Corresponding, ACADEMIC PRESS INC ELSEVIER SCIENCE, Mar. 2014, JOURNAL OF COLLOID AND INTERFACE SCIENCE, 418, 126 - 131, English

  [Refereed]

  Scientific journal


• 水素結合を利用した有機/無機複合粒子の作製

  MINAMI Hideto, CHANG CHENG, SUZUKI Toyoko

  Large polystyrene particles stabilized by polyvinylpyrrolidone (PVP) (PS_PVP)-core/small silica particles (SiO₂)-corona raspberry-like composite particles were successfully prepared by heterocoagulation technique utilizing hydrogen bonding interaction between the pyrrolidone group of PVP and the silanol group of SiO₂. The coverage of the SiO₂ corona particles on the PS_PVP core particle could be controlled by changing the pH of dispersions and the molecular weight of PVP. Moreover, heterocoagulation of large poly(methyl methacrylate) particles stabilized by PVP and small SiO₂ particles was also carried out, resulting in formation of raspberry-like composite particles. These results suggested that raspberry-like particles composed of various polymer particles and inorganic particles could be prepared by heterocoagulation technique utilizing hydrogen bonding interaction.

  Japan Society of Colour Material, 2014, 色材協会誌, 87(10) (10), 356 - 360, Japanese

  [Refereed][Invited]

  Scientific journal


• RAFT Polymerization in a Miniemulsion System Using a Novel Type of Amphiphilic RAFT Agent with Poly(ethylene glycol) Bound to a Dithiobenzoate Group

  Hideto Minami, Kengo Shimomura, Toyoko Suzuki, Keiichi Sakashita, Tetsuya Noda

  In this study, reversible addition fragmentation chain transfer (RAFT) miniemulsion polymerization using a novel type of amphiphilic RAFT agent was investigated. The novel amphiphilic RAFT agent has a specific chemical structure in which a hydrophilic poly(ethylene glycol) chain is directly bonded to the "Z-group" position, and not the leaving group (R group), of the thiocarbonylthio group (RAFT group). As a result, the RAFT groups are localized at the interface of the water/monomer droplets (polymer particles) throughout the polymerization, unlike with a conventional amphiphilic RAFT agent. Polystyrene (PS) particles with a broad molecular weight distribution and 69% degree of livingness were successfully prepared using the novel RAFT agent in a manner similar to that for a conventional RAFT system. Notably, after the completion of polymerization, the RAFT groups could be easily removed from the dispersed PS particles via treatment with an excess of potassium persulfate, because the RAFT groups only exist near the particle surfaces.

  AMER CHEMICAL SOC, Jan. 2014, MACROMOLECULES, 47(1) (1), 130 - 136, English

  [Refereed]

  Scientific journal


• Preparation of boron nitride and polystyrene/boron nitride composite particles by dehydrogenation in ionic liquids

  K. Kinoshit, N. Matsunag, M. Hiraoka, H. Yanagimoto, H. Minami

  Boron nitride (BN) was prepared by the dehydrogenation of ammonia borane (AB) in an ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate, [Bmim][BF4]) at 300 C-degrees, which is lower than the temperature of the general preparation method of BN and below the decomposition temperature of polystyrene (PS). The reaction was performed at 120 degrees C for 10 h under atmospheric pressure, and the product material was subsequently heated at 300 degrees C for 24 h under reduced pressure in [Bmim][BF4]. The reaction rate and final conversion increased when [Bmim][BF4] was used as the medium as compared to those observed in the bulk system (in the absence of the solvent system). Moreover, PS/BN composite particles were successfully prepared by dehydrogenation in [Bmim][BF4] in the presence of cross-linked PS seed particles. Transmission electron microscopy images of ultrathin cross-sections of the composite particles confirmed the core-shell morphology of the particles with a PS core and a BN shell.

  Corresponding, ROYAL SOC CHEMISTRY, 2014, RSC ADVANCES, 4(17) (17), 8605 - 8611, English

  [Refereed]

  Scientific journal


• Morphology changes of ionic liquid encapsulating polymer microcontainers upon X-ray irradiation

  Andreas Spaeth, Hideto Minami, Toyoko Suzuki, Rainer H. Fink

  Microencapsulated ionic liquids represent a novel type of material with high potential for various applications in chemical synthesis, catalysis or separation processes. We present a detailed morphological analysis of this material by means of two imaging techniques, i.e., scanning transmission X-ray microspectroscopy (STXM) and transmission electron microscopy (TEM). While TEM can be utilized only in the dry state, STXM offers access to high-resolution imaging in liquid surroundings. In either case prolonged illumination leads to degradation of the stabilizing polymer. We discuss potential scenarios, e.g., formation of perforations within the polymer shell, to explain the experimental findings.

  ROYAL SOC CHEMISTRY, 2014, RSC ADVANCES, 4(7) (7), 3272 - 3277, English

  [Refereed]

  Scientific journal


• Preparation of polymer/poly(ionic liquid) composite particles by seeded dispersion polymerization

  Masayoshi Tokuda, Tatsunori Shindo, Hideto Minami

  Seeded dispersion polymerization of the ionic-liquid monomer ([2-(methacryloyloxy)ethyl]trimethylammonium bis(trifluoromethanesulfonyl)amide) ([MTMA][TFSA]) was performed in ethanol by using either polystyrene (PS) or poly(methyl methacrylate) (PMMA) particles as seeds. In the presence of PS seed particles, secondary nucleated poly(ionic liquid) (PIL) particles were formed, and no PS/PIL composite particles were observed. In the case of PMMA seeds particles, the diameters of the obtained particles increased compared to those of PMMA seed particles (without formation of particles that were formed as byproducts), which indicates that the PMMA/PIL composite particles were successfully prepared. Transmission electron microscopy studies of ultrathin cross sections of the PMMA/PIL particles revealed that the obtained particles had a sea-island structure consisting of PIL domains. These results are consistent with the theoretical considerations based on the spreading coefficients calculated from the interfacial tensions. © 2013 American Chemical Society.

  Corresponding, Sep. 2013, Langmuir, 29(36) (36), 11284 - 11289, English

  [Refereed]

  Scientific journal


• Preparation and characterization of conducting polyaniline layered magnetic nano composite polymer particles

  H. Ahmad, K. Kumar, M. A. Rahman, M. M. Rahman, M. A.J. Miah, H. Minami, M. A. Nuri

  Considering the application potentials of organic materials possessing both conducting and ferromagnetic functions in various electronic devices, an attempt was made to prepare conducting polyaniline (PANI) layered magnetic nano composite polymer particles. Two routes were used to modify magnetic Fe3O4 core particles. In one route, seeded emulsion polymerization of methyl methacrylate (MMA) was carried out in presence of nano-sized Fe3O4 core particles. In another route, cross-linker ethyleneglycol dimethacrylate (EGDM) was used in addition to MMA. The modified composite particles were named as Fe3O4/PMMA and Fe3O4/P(MMA-EGDM), respectively. Finally, seeded chemical oxidative polymerization of aniline was carried out in the presence of Fe3O4/PMMA and Fe3O4/P(MMA-EGDM) composite seed particles to obtain Fe3O4/PMMA/PANI and Fe3O4/P(MMA-EGDM)/PANI composite polymer particles. The modification of Fe3O4 core particles was confirmed by electron micrographs, FTIR, UV-visible spectra, X-ray photoelectron spectra, X-ray diffraction pattern and thermogravimetric analyses. A comparative study showed that crosslinking of intermediate shell improved the magnetic susceptibility and electrical conductivity of PANI layered magnetic nano composite particles. © 2013 John Wiley & Sons, Ltd.

  Aug. 2013, Polymers for Advanced Technologies, 24(8) (8), 740 - 746, English

  [Refereed]

  Scientific journal


• Specific solubility behavior of quaternary ammonium-based poly(ionic liquid) particles by changing counter anion

  Masayoshi Tokuda, Hideto Minami

  The solubility behavior of poly(ionic liquid) (PIL) particles, which were prepared by dispersion polymerization of ([2-(methacryloyloxy)ethyl]trimethylammonium bis(trifluoromethanesulfonyl)amide), [MTMA][TFSA], was observed in detail. The solubility of PILs was varied by changing the counter anion. A PIL with [TFSA] anion does not dissolve in polar solvents such as ethanol however, a PIL with Br anions does dissolve in ethanol. Upon the addition of LiBr to ethanol solution at high concentrations (> 2.5. wt.%), the PIL particles dissolved from their outer surface and the counter anions [TFSA] were replaced with Br anions on the particle surfaces. On the other hand, in the case of the ethanol solutions at low LiBr concentrations (< 2.5. wt.%), a specific solubility behavior was observed: domains inside the PIL particles were generated before their dissolution, most likely due to osmotic pressure. Moreover, PIL particles having hollow structures were prepared using this specific solubility behavior. © 2013 Elsevier Inc.

  Corresponding, May 2013, Journal of Colloid and Interface Science, 398, 120 - 125, English

  [Refereed]

  Scientific journal


• Preparation of magnetically doped multilayered functional silica particles via surface modification with organic polymer

  M. A. Rahman, M. A. J. Miah, H. Minami, H. Ahmad

  Magnetically modified functional particles are emerging as one of the most promising candidate in numerous multidisciplinary applications. In this research, a simple process has been developed to prepare magnetically modified aminated silica (SiO2) particles. Herein, submicron-sized SiO2 particles were modified with poly(methylmethacrylate-methacrylic acid) by seeded polymerization without any stabilizer. The carboxyl groups localized near the particles surface were then covalently linked with ethylene diamine to prepare aminated composite particles. Iron ions were then precipitated on the surface of aminated composite particles to obtain magnetically doped functional SiO2 particles. The preparation of such particles was confirmed by scanning electron microscopy, Fourier transform infrared, 1H NMR, X-ray photoelectron spectroscopy and thermogravemetric analyses. Relative measurement of adsorption study of different biomolecules suggested that magnetically doped functional silica particles are comparatively hydrophobic. Copyright (c) 2012 John Wiley & Sons, Ltd.

  WILEY-BLACKWELL, Feb. 2013, POLYMERS FOR ADVANCED TECHNOLOGIES, 24(2) (2), 174 - 180, English

  [Refereed]

  Scientific journal


• Preparation of raspberry-like polymer particles by a heterocoagulation technique utilizing hydrogen bonding interactions between steric stabilizers

  Hideto Minami, Yusuke Mizuta, Toyoko Suzuki

  Large polystyrene particles stabilized by poly(acrylic acid) (PAA) (L-PSPAA) (as the core) and small polystyrene particles stabilized by poly(vinyl pyrrolidone) (PVP) (S-PSPVP) (as the corona) were successfully used to prepare raspberry-like particles by a heterocoagulation technique utilizing the hydrogen bonding interaction between PAA and PVP. The coverage of L-PSPAA by S-PSPVP could be controlled by adding PVP homopolymer to the L-PSPAA dispersion and by changing the molecular weight of the stabilizers. Moreover, the heterocoagulation of large poly(methyl methacrylate) particles stabilized by PAA (L-PMMAPAA) and S-PSPVP particles was also accomplished, resulting in the formation of L-PMMAPAA-core/S-PSPVP-corona raspberry-like composite particles. These results suggested that the raspberry-like particles composed of various polymer particles could be formed by the heterocoagulation technique utilizing the hydrogen bonding interaction. © 2012 American Chemical Society.

  Jan. 2013, Langmuir, 29(2) (2), 554 - 560, English

  [Refereed]

  Scientific journal


• Preparation of ionic liquid-encapsulated polymer particles

  Hideto Minami, Hiroki Fukaumi, Masayoshi Okubo, Toyoko Suzuki

  Encapsulation of ionic liquid, 1-hexyl-3-methylimidazolium bis(trifluoromethane sulfonyl)amide ([Hmim][TFSA]), was carried out by microsuspension polymerization of ethylene glycol dimethacrylate (EGDM) utilizing the self-assembling of phase-separated polymer method, which had been proposed by us for the preparation of hollow polymer particles. After the optimization of the polymerization conditions, ionic liquid-encapsulated polymer particles, which have smooth surface morphology and a single hollow structure, were successfully prepared. Encapsulation efficiency of [Hmim][TFSA] was significantly improved from about 20-70 % by changing the shell polymer from polyEGDM homopolymer to poly(EGDM-butyl methacrylate) (50/50, w/w) copolymer, which was likely to have relatively low affinity for [Hmim][TFSA]. Additionally, ionic liquid-encapsulated polymer particles displaying ionic conductivity were successfully prepared using triethylene glycol dimethacrylate as divinyl monomer instead of EGDM.

  SPRINGER, Jan. 2013, COLLOID AND POLYMER SCIENCE, 291(1) (1), 45 - 51, English

  [Refereed]

  Scientific journal


• Preparation of free-standing thermosensitive composite gel particles incorporating ionic liquids

  Toyoko Suzuki, Hiroko Ichikawa, Masaya Nakai, Hideto Minami

  Composite gel particles consisting of 2-phenylethyl methacrylate (PhEMA)-vinyl toluene (VT) copolymer (P(PhEMA-VT)) and poly(methyl methacrylate) (PMMA) were prepared by seeded polymerization of MMA in the presence of P(PhEMA-VT)/1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl) amide ([Bmim] [TFSA], IL) gel particles, in which P(PhEMA-VT) exhibited lower critical solution temperature (LCST)-type phase transition behavior in IL. The particles obtained at 70 degrees C (above the LCST) adopted a phase-separated snowman-like shape and clearly exhibited volume-phase transition behavior in which the P(PhEMA-VT) phase reduced in size and the PMMA phase increased in size above the LCST. The P(PhEMA-VT) phase exhibited LCST-type volume-phase transition behavior and separation of IL occurred. In contrast, the PMMA phase was swollen with IL separated from the P(PhEMA-VT) phase, in which the PMMA phase could act as a preserver of IL. Interestingly, the composite gel particles exhibited similar volume-phase transition behavior in both air and vacuum without leakage of IL from the gel particles, which should be free-standing thermosensitive gel particles.

  Corresponding, ROYAL SOC CHEMISTRY, 2013, SOFT MATTER, 9(6) (6), 1761 - 1765, English

  [Refereed]

  Scientific journal


• Preparation of hemispherical polystyrene particles utilizing the solvent evaporation method in aqueous dispersed systems

  Takuya Tanaka, Tomoe Yamagami, Tatsuhiro Nogami, Hideto Minami, Masayoshi Okubo

  Various nonspherical polystyrene (PS) particles were prepared by slow evaporation of toluene (used common good solvent) from homogeneous PS/hexadecane (HD)/toluene droplets dispersed in surfactant aqueous solutions at room temperature, followed by the rapid removal of HD from PS/HD particles with various phase-separated morphologies. The morphology of PS/HD particles was controlled by tuning the interfacial tension with various types of surfactants. Hemispherical PS particles with flat surfaces were obtained from phase-separated PS/HD/toluene droplets having a Janus structure, when polyoxyethylene nonylphenyl ether with an average ethylene oxide chain length of 30.8 was used as the surfactant. Polymer Journal (2012) 44, 1112-1116; doi:10.1038/pj.2012.71; published online 23 May 2012

  NATURE PUBLISHING GROUP, Nov. 2012, POLYMER JOURNAL, 44(11) (11), 1112 - 1116, English

  [Refereed]

  Scientific journal


• Iodine transfer dispersion polymerization with CHI3 and reversible chain transfer-catalyzed dispersion polymerization with N-iodosuccinimide of methyl methacrylate in supercritical carbon dioxide

  Tomoya Taniyama, Taisuke Kuroda, Hideto Minami, Masayoshi Okubo

  Iodine transfer dispersion polymerization (dispersion ITP) with CHI3 and reversible chain transfer-catalyzed dispersion polymerization (dispersion RTCP) with N-iodosuccinimide of methyl methacrylate were performed successfully in supercritical carbon dioxide medium. Both polymerizations proceeded smoothly to similar to 80% conversion in 6 h and yielded the polymeric product as a powder after venting the reactor. In both syntheses, the number-average molecular weights (M-n) increased with greater conversion. The ratio (M-w/M-n) was maintained at comparatively low values throughout the polymerizations; the values of M-w/M-n were lower in the dispersion RTCP (1.3-1.4) than the dispersion ITP (1.5-1.7). A chain extension test using styrene indicated that the poly(methyl methacrylate) prepared by dispersion ITP and dispersion RTCP had high degrees of livingness (71 and 74%, respectively). Polymer Journal (2012) 44, 1082-1086; doi:10.1038/pj.2012.78; published online 23 May 2012

  NATURE PUBLISHING GROUP, Nov. 2012, POLYMER JOURNAL, 44(11) (11), 1082 - 1086, English

  [Refereed]

  Scientific journal


• Preparation of Poly(acrylic acid)-b-polystyrene by Two-Step Atom Transfer Radical Polymerization in Supercritical Carbon Dioxide

  Hideto Minami, Atsushi Tanaka, Yasuyuki Kagawa, Masayoshi Okubo

  It is known that it is difficult to polymerize carboxylic acid-based monomer by atom transfer radical polymerization (ATRP) in polar solvents due to the protonation of ligand caused by acidic dissociation of the monomer. In this study, precipitation reverse ATRP of acrylic acid (AA) was carried out in supercritical carbon dioxide (scCO(2)), which is a nonpolar solvent to dissolve transition metal complexes, at 30 MPa and 45 degrees C. The polymerization proceeded smoothly and the conversion reached 86% for 3 h. After vending of scCO(2), a dry poly(acrylic acid) (PAA) powder was obtained. Weight-average molecular weight and polydispersity of the methylated PAA, which were measured by gel-permeation chromatography after methyl esterification, were 3.5 x 10(4) and 2.07, respectively, indicating that the precipitation reverse ATRP proceeded with a bad control manner. However, chain extension of the methylated PAA with styrene was possible by ATRP in a bulk system. Moreover, PAA-b-polystyrene was successfully prepared in scCO(2) directly by two-step ATRP, although its molecular weight distribution was broad. (C) 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 50: 2578-2584, 2012

  Lead, WILEY-BLACKWELL, Jul. 2012, JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 50(13) (13), 2578 - 2584, English

  [Refereed]

  Scientific journal


• Preparation of Micron-Sized Monodisperse Poly(ionic liquid) Particles

  Masayoshi Tokuda, Hideto Minami, Yusuke Mizuta, Tomoe Yamagami

  Micron-sized monodisperse poly(ionic liquid) (PIL) particles, poly([2-(methacryloyloxy)ethyl]trimethylammonium bis(trifluoromethanesulfonyl)amide), were prepared by dispersion polymerization at 70 degrees C in methanol with poly(vinylpyrrolidone) as a stabilizer. The obtained particle size could be controlled by addition of ethanol to the methanol medium while maintaining narrow monodispersity. The PIL particles exhibit unique properties; they can be observed by scanning electron microscopy without platinum coating, which is generally used to avoid an electron charge. Moreover, the solubility of the PIL particles can be easily changed by changing the counter anion, similar to the process for ionic liquids.

  WILEY-V C H VERLAG GMBH, Jul. 2012, MACROMOLECULAR RAPID COMMUNICATIONS, 33(13) (13), 1130 - 1134, English

  [Refereed]

  Scientific journal


• Preparation of Highly Crystalline, Magnesium Oxide and Polystyrene/Magnesium Hydroxide Composite Particles by Sol-Gel Processes in an Ionic Liquid

  Hideto Minami, Keigo Kinoshita, Tomoki Tsuji, Hiroshi Yanagimoto

  Highly crystalline magnesium hydroxide (Mg(OH)(2)) was obtained by sol-gel process using magnesium nitrate (Mg(NO3)(2)) with ammonium hydroxide (NH4OH) in a hydrophilic ionic liquid, 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) as a medium. Crystallite size of Mg(OH)(2) obtained in [Bmim]Cl was larger than that obtained in 2-propanol (used as a medium for comparison), which indicates that [Bmim]Cl worked as a template. The obtained Mg(OH)(2) was transformed to magnesium oxide (MgO) by heat treatment under atmospheric pressure. After heat treatment, crystallite size of the MgO obtained in [Bmim]Cl was also larger than that obtained in 2-propanol, reflecting the crystallinity of Mg(OH)(2) before heat treatment. Polystyrene (PS)/Mg(OH)(2) composite particles were successfully prepared by seeded dispersion sol-gel process in [Bmim]Cl in the presence of PS seed particles. The composite particles had smooth surfaces and core shell morphology consisting of PS core and Mg(OH)(2) shell having high crystallinity. The Mg(OH)(2) content of the composite particles calculated from the weight loss measured by thermogravimetry (17 wt %) agreed well with the theoretical value (19 wt %). Using 2-propanol as a medium, secondary nucleation of Mg(OH)(2) was observed, and composite particles were not obtained. It was clarified that the core-shell structure was consistent with the predicted morphology from the viewpoint of the spreading coefficients calculated from the interfacial tensions.

  AMER CHEMICAL SOC, Jul. 2012, JOURNAL OF PHYSICAL CHEMISTRY C, 116(27) (27), 14568 - 14574, English

  [Refereed]

  Scientific journal


• Preparation of poly(n-butyl acrylate)-b-polystyrene particles by emulsifier-free, organotellurium-mediated living radical emulsion polymerization (emulsion TERP)

  Yukiya Kitayama, Kazuya Kishida, Hideto Minami, Masayoshi Okubo

  We have successfully demonstrated the preparation of poly(n-butyl acrylate)-b-polystyrene particles without any coagulation by two-step emulsifier-free, organotellurium-mediated living radical emulsion polymerization (emulsion TERP) using poly(methacrylic acid) (PMAA)methyltellanyl (TeMe) (PMAA30-TeMe) (degree of polymerization of PMAA, 30) and 4,4'-azobis(4-cyanovaleric acid) (V-501). The final particle size was similar to 30 nm and second particle nucleation was not observed throughout the polymerization. Mn increased linearly in both steps with conversion and blocking efficiency was similar to 75%. PDI was improved by increasing radical entry frequency into each polymer particle due to an increase of the polymerization temperature. (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012

  WILEY-BLACKWELL, May 2012, JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 50(10) (10), 1991 - 1996, English

  [Refereed]

  Scientific journal


• Iodine transfer dispersion polymerization (dispersion ITP) with CHI3 and reversible chain transfer catalyzed dispersion polymerization (dispersion RTCP) with GeI4 of styrene in supercritical carbon dioxide

  Taisuke Kuroda, Atsushi Tanaka, Tomoya Taniyama, Hideto Minami, Atsushi Goto, Takeshi Fukuda, Masayoshi Okubo

  Submicrometer-sized, polystyrene (PS) particles with controlled molecular weight distribution (MWD), were successfully obtained directly as powder state by iodine transfer dispersion polymerization (dispersion ITP) and reversible chain transfer catalyzed dispersion polymerization (dispersion RTCP) in supercritical carbon dioxide (scCO(2)) for the first time. These dispersion polymerizations proceeded similarly reaching 80% conversion in 21 h. In the dispersion ITP, the number-average molecular weight (M-n) nonlinearly increased with the conversion, which were always higher than theoretical values, and the MWD at each conversion was comparatively narrow (M-w/M-n = 1.5-1.7) throughout polymerization. In the dispersion RTCP, M, also nonlinearly increased with increasing conversion and M-w/M-n values were in the range of 1.3-1.5, which were lower than those of the dispersion ITP. In chain extension tests in bulk systems, the degrees of livingness of PS prepared by the dispersion ITP and the dispersion RTCP in scCO(2) systems were, respectively, estimated to be 56% and 48%. From these results, while more investigation is necessary, it was concluded that both polymerizations with scCO(2) proceeded in a partly controlled manner. (C) 2012 Elsevier Ltd. All rights reserved.

  ELSEVIER SCI LTD, Mar. 2012, POLYMER, 53(6) (6), 1212 - 1218, English

  [Refereed]

  Scientific journal


• Iodine Transfer Polymerization (ITP with CHI3) and Reversible Chain Transfer Catalyzed Polymerization (RTCP with Nitrogen Catalyst) of Methyl Methacrylate in Aqueous Microsuspension Systems: Comparison with Bulk System

  Yukiya Kitayama, Mika Yorizane, Hideto Minami, Masayoshi Okubo

  Iodine transfer polymerization (ITP) with CHI3 as transfer agent and reversible chain transfer catalyzed polymerization (RTCP) with N-iodosuccinimide (NIS) as catalyst of methyl methacrylate (MMA) were successfully applied to aqueous microsuspension systems (respectively, microsuspension ITP and microsuspension RTCP). Both microsuspension ITP and RTCP proceeded smoothly without induction period and with a controlled/living manner. Polydispersity index (PDI, M-w/M-n.) of the microsuspension RTCP was smaller than that of the microsuspension ITP, and it was larger than RTCP in a bulk system (bulk RTCP). The difference seems to be based on that NIS would partly react with water dissolved in the MMA phase, and formed succinimide, which is a low controllable catalyst in comparison with NIS. With decreasing particle (monomer droplet) size, the polymerization rate increased, and a reasonable control was maintained throughout the polymerization based on the segregation effect.

  AMER CHEMICAL SOC, Mar. 2012, MACROMOLECULES, 45(5) (5), 2286 - 2291, English

  [Refereed]

  Scientific journal


• Phase-Transfer Behavior of Cross-Linked Poly(acrylic acid) Particles Prepared by Dispersion Polymerization from Ionic Liquid to Water

  Hideto Minami, Yusuke Mizuta, Akira Kimura

  The phase-transfer behavior of poly(acrylic acid) (PAA) particles from the hydrophobic ionic liquid N,N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium bis(trifluoromethanesulfonyl)amide phase to the water phase in the particle state, which we reported previously, was examined in more detail. PAA particles were prepared in the ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide ([Bmim][TFSA]) and the organic solvent chloroform and were extracted. The transfer of PAA particles to water in the particle state was also observed in [Bmim][TFSA] systems. In contrast, the transfer phenomenon was not observed in the chloroform system. It was clarified that water/oil interfacial tension gamma(wo) is an important parameter in the extraction of PAA in the particle state from the viewpoint of free energy. When the cationic surfactant tetradecyltrimethylammonium bromide, aqueous solution was used as the extraction medium, the PAA particles were extracted in the particle state from chloroform to water, in which gamma(wo) became as low as that of the ionic liquid. This suggests that the phase-transfer phenomenon of PAA particles in the particle state was induced by the ionic liquid's unique property of low interfacial tension with water despite its high hydrophobic character.

  AMER CHEMICAL SOC, Feb. 2012, LANGMUIR, 28(5) (5), 2523 - 2528, English

  [Refereed]

  Scientific journal


• Preparation of block copolymer particles by two-step, reversible chain transfer catalyzed polymerization (RTCP) with nitrogen catalyst in miniemulsion systems

  Yukiya Kitayama, Mika Yorizane, Hideto Minami, Masayoshi Okubo

  We demonstrated a successful preparation of poly(methyl methacrylate) (PMMA)-b-poly(benzyl methacrylate) (PBzMA) particles in aqueous media by two-step reversible chain transfer catalyzed polymerization (RTCP) with N-iodosuccinimide as a catalyst at 70 degrees C. The polymerization smoothly proceeded, and the number-average molecular weight (M-n) increased linearly with conversion, which agreed with the theoretical molecular weight (M-n,M-th). The molecular weight distribution at each conversion was narrow (polydispersity index approximate to 1.4). Approximately 88% PMMA chains became PMMA-b-PBzMA at 64% conversion, which was a relatively high value.

  ROYAL SOC CHEMISTRY, 2012, POLYMER CHEMISTRY, 3(6) (6), 1394 - 1398, English

  [Refereed]

  Scientific journal


• Emulsifier-Free, Organotellurium-Mediated Living Radical Emulsion Polymerization of Styrene: Initial Stage of Polymerization

  KITAYAMA Yukiya, MORIBE Hirotaka, MINAMI Hideto, OKUBO Masayoshi

  Aug. 2011, Polymer, Vol 52, No.13, pp. 2729-2734, English

  [Refereed]

  Scientific journal


• Nitroxide-Mediated Radical Polymerization in Microemulsion (Microemulsion NMP) of n-Butyl Acrylate

  Seita Tomoeda, Yukiya Kitayama, Junpei Wakamatsu, Hideto Minami, Per B. Zetterlund, Masayoshi Okubo

  Nitroxide-mediated radical polymerization (NMP) in microemulsion (microemulsion NMP) of n-butyl acrylate (BA) has been carried out at 100 degrees C using N-tert-butyl-N-(1-diethylphosphono-2,2-dimethylpropyl) nitroxide (SG1), 2,2'-azoisobutyronitrile (AIBN), and the cationic emulsifier tetradecyltrimethylammonium bromide (TTAB). At [SG1](0)/[AIBN](0) of 1.68 (molar ratio), the polymerization exhibited classical trend marks of a controlled/living system with the molecular weight distribution (MWD) shifting to higher molecular weights with increasing conversion and a linear increase in number-average molecular weight (M-n) vs conversion. Bulk NMP carried out under the same conditions (without water and TTAB) proceeded at an extremely high rate without control/livingness. From these results, it is concluded that the confined space effect (compartmentalization) operates in the microemulsion NMP; in other words, it is a useful tool to prepare nanosized monomer-solubilized micelles for regulation and improvement of NMP.

  AMER CHEMICAL SOC, Jul. 2011, MACROMOLECULES, 44(14) (14), 5599 - 5604, English

  [Refereed]

  Scientific journal


• Preparations of Polystyrene/Aluminum Hydroxide and Polystyrene/Alumina Composite Particles in an Ionic Liquid

  Keigo Kinoshita, Hideto Minami, Yasunori Tarutani, Kimitaka Tajima, Masayoshi Okubo, Hiroshi Yanagimoto

  Polystyrene (PS)/aluminum hydroxide (Al(OH)(3)) composite particles were successfully prepared by the sol-gel process of aluminum isopropoxide (Al(OPr')(3)) in a hydrophilic ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF4]) using ammonium hydroxide (NH4OH) as a catalyst in the presence of PS seed. Transmission electron microscopy observation of ultrathin cross sections of the composite particles revealed that the composite particles had a core-shell morphology consisting of a PS core and a Al(OH)(3) shell having high crystallinity. nucleated Al(OH)(3) could be reduced by dropwise addition of NH4OH. Moreover, PS/eta-Al2O3 successfully prepared by heat treatment of PS/Al(OH)(3) at 300 degrees C in N-2 atmosphere, which is temperature of PS.

  Corresponding, AMER CHEMICAL SOC, Apr. 2011, LANGMUIR, 27(8) (8), 4474 - 4480, English

  [Refereed]

  Scientific journal


• Reversible Chain Transfer Catalyzed Polymerization (RTCP) of Methyl Methacrylate with Nitrogen Catalyst in an Aqueous Microsuspension System

  Mika Yorizane, Takashi Nagasuga, Yukiya Kitayama, Atsushi Tanaka, Hideto Minami, Atsushi Goto, Takeshi Fukuda, Masayoshi Okubo

  AMER CHEMICAL SOC, Nov. 2010, MACROMOLECULES, 43(21) (21), 8703 - 8705, English

  [Refereed]

  Scientific journal


• Emulsifier-Free, Organotellurium-Mediated Living Radical Emulsion Polymerization: Particle Formation

  KITAYAMA Yukiya, CHAIYASAT Amorn, MINAMI Hideto, OKUBO Masayoshi

  Sep. 2010, Macromolecules, Vol 43, ,No.18, pp. 7465-7471, English

  [Refereed]

  Scientific journal


• Preparation of Aluminum Hydroxide and Alumina Particles in an Ionic Liquid

  Keigo Kinoshita, Hideto Minami, Yasunori Tarutani, Masayoshi Okubo

  Highly crystalline Al(OH)(3) particles were successfully prepared by the sol gel process of aluminum isopropoxide (Al(OPri)(3)) in a hydrophilic ionic liquid (IL), 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF4]) at 30 degrees C using NH4OH as catalyst. Moreover, crystalline alumina particles were prepared from the Al(OH)(3) particles by heat treatment at 300 degrees C. When 2-propanol was used as medium for comparison, obtained particles were low crystalline AlO(OH). This difference seemed to arise from the difference in the local structure of Al(OPri)(3) in IL.

  Corresponding, CHEMICAL SOC JAPAN, Jul. 2010, CHEMISTRY LETTERS, 39(7) (7), 741 - 743, English

  [Refereed]

  Scientific journal


• Dual Stimuli-Responsive "Mushroom-like" Janus Polymer Particles as Particulate Surfactants

  Takuya Tanaka, Masaru Okayama, Hideto Minami, Masayoshi Okubo

  Mushroom-like Janus poly(methyl methacrylate) (PMMA)/poly(styrene-2-(2-bromoisobutyryloxy)ethyl methacrylate)-graft-poly(2-(dimethylamino)ethyl methacrylate) (PDM) particles synthesized in our previous report(27) were applied as particulate surfactants. The PDM moiety at the one side of the Janus particles reversibly exhibited the volume phase transition in response to pH and temperature in an aqueous medium; that is, the surface property of the Janus particles comprising both PDM and PMMA reversibly changed between amphiphilic and hydrophobic based on the nature of PDM. Consequently, 1-octanol-in-water emulsion droplets stabilized by the amphiphilic Janus particles coalesced in the alkaline region and at 60 degrees C around neutral pH because of desorption of the hydrophobized Janus particles from the interface to the oil phase.

  AMER CHEMICAL SOC, Jul. 2010, LANGMUIR, 26(14) (14), 11732 - 11736, English

  [Refereed]

  Scientific journal


• Thermodynamic and kinetic considerations on the morphological stability of "hamburger-like" composite polymer particles prepared by seeded dispersion polymerization

  Teruhisa Fujibayashi, Takuya Tanaka, Hideto Minami, Masayoshi Okubo

  Micrometer-sized, monodisperse, "hamburger-like" polystyrene (PS)/poly(2-ethylhexyl methacrylate)/decane composite particles were obtained by seeded dispersion polymerization of 2-ethylhexyl methacrylate with PS seed particles in the presence of decane. The morphological stability of the hamburger-like particles was investigated based on thermodynamic and kinetic aspects. The hamburger-like morphology was maintained at 60 A degrees C (above glass transition temperature (T (g))) for at least 1 week in spite of less thermodynamic stability than hemispherical morphology. T (g) of the particles gradually increased throughout the polymerization due to monomer consumption. Geometric calculation result indicates that the degree of reduction of the interfacial free energy at the early stage of the morphological development is significantly low. From these results, it is concluded the morphological stability of the hamburger-like particles is considerably high because the development from hamburger-like to hemispherical morphologies is retarded by the gradual increase in viscosity inside the particles and the significantly lower interfacial free energy reduction.

  SPRINGER, Jun. 2010, COLLOID AND POLYMER SCIENCE, 288(8) (8), 879 - 886, English

  [Refereed]

  Scientific journal


• Preparation of Micrometer-Sized, Onionlike Multilayered Block Copolymer Particles by Two-Step AGET ATRP in Aqueous Dispersed Systems: Effect of the Second-Step Polymerization Temperature

  Yukiya Kitayama, Yasuyuki Kagawa, Hideto Minami, Masayoshi Okubo

  The polymerization rate, control/livingness, and particle morphology in seeded activators generated by electron transfer for the atom-transfer radical polymerization of styrene with PiBMA-Br macroinitiator particles were investigated at 70, 90, and 110 degrees C. At 110 degrees C, the polymerization proceeded quickly until 60% conversion was reached, but control/livingness was not observed. This seems to be the reason for the high activation rate and spontaneous initiation of styrene, which significantly increased the radical concentration, resulting in a number of radical terminations. As a result, the block copolymer was not sufficiently formed, leading to a sea-island structure. However, at 70 and 90 degrees C, the polymerizations were almost complete in 14 and 7 h, respectively. Control/livingness was maintained, resulting in PiBMA-b-PS. As a result, onionlike multilayered particles were successfully synthesized. These polymerization behaviors were discussed from the viewpoint of the radical concentration and propagation rate coefficient at various temperatures.

  AMER CHEMICAL SOC, May 2010, LANGMUIR, 26(10) (10), 7029 - 7034, English

  [Refereed]

  Scientific journal


• Preparation of Poly(acrylic acid) Particles by Dispersion Polymerization In an Ionic Liquid

  MINAMI Hideto, KIMURA Akira, KINOSHITA Keigo, OKUBO Masayoshi

  Apr. 2010, Langmuir, Vol 26. No. 9, pp. 6303-6307, English

  [Refereed]

  Scientific journal


• A Novel Approach for Preparation of Micrometer-sized, Monodisperse Dimple and Hemispherical Polystyrene Particles

  Takuya Tanaka, Yoshifumi Komatsu, Teruhisa Fujibayashi, Hideto Minami, Masayoshi Okubo

  Microilleter-sized, monodisperse dimple and hemispherical polystyrene (PS) particles were successfully prepared by heating (55-70 degrees C) of spherical PS particles dispersed in methanol/water media (40/60 to 80/20, w/w) in the presence of decane droplets, and subsequent cooling down to room temperature. Decane was absorbed by the PS particles during the heating process. Decane-absorbed PS particles phase-separated into PS and decane phases in the inside during the cooling process, and eventually dimple and/or hemispherical particles were formed by removal of the decane phase from phase-separated PS/decane particles by evaporation. The size of the dimple, which is determined by the volume of decane phase-separated from decane-absorbed PS particles during the cooling process, increased with increases in the heating temperature and the methanol content.

  AMER CHEMICAL SOC, Mar. 2010, LANGMUIR, 26(6) (6), 3848 - 3853, English

  [Refereed]

  Scientific journal


• Effects of properties of the surface layer of seed particles on the formation of golf ball-like polymer particles by seeded dispersion polymerization

  Natsumi Konishi, Teruhisa Fujibayashi, Takuya Tanaka, Hideto Minami, Masayoshi Okubo

  Micrometer-sized, monodisperse polystyrene (PS)/poly(styrene-co-sodium styrene sulfonate) (P(S-NaSS))/poly(n-butyl methacrylate) (Pn-BMA) composite particles having a 'golf ball-like' shape were prepared by seeded dispersion polymerization of n-butyl methacrylate with PS-core/P(S-NaSS)-shell seed particles with various shell thicknesses in the presence of dodecane droplets in a methanol/water (80/20, w/w) medium, followed by evaporation of the dodecane. The effects of the hydrophilic P(S-NaSS)-shell properties of seed particles on the formation of golf ball-like particles were investigated on the basis of thermodynamic and kinetic considerations. The dimples at the surface formed by the volume reduction of Pn-BMA/dodecane domains were deep when PS/P(S-NaSS) seed particles, the hydrophilic shell of which was thick, were used, whereas PS/P(S-NaSS)/Pn-BMA composite particles, the P(S-NaSS) hydrophilic shell of which was thin, exhibited a polyhedral shape. This is attributed to the fact that the molecular weight of the shell moiety comprising P(S-NaSS) was reduced by lowering the monomer concentration to decrease shell thickness, which seems to result in an increase in the mobility of Pn-BMA/dodecane domains at the particle surface. On the basis of this finding, when the molecular weight of the shell moiety of the seed particle was increased, golf ball-like particles were formed, even if the shell thickness of seed particles was thin. Polymer Journal (2010) 42, 66-71; doi:10.1038/pj.2009.313

  SOC POLYMER SCIENCE JAPAN, Jan. 2010, POLYMER JOURNAL, 42(1) (1), 66 - 71, English

  [Refereed]

  Scientific journal


• Preparation of Nylon-6 Particles in Ionic Liquids

  Hideto Minami, Yasunori Tarutani, Kazuhiro Yoshida, Masayoshi Okubo

  Utilizing the thermal stability of ionic liquid, micrometer-sized Nylon-6 particles were successfully prepared by hydrolytic polymerization of epsilon-caprolactam at high temperature with polyvinyl pyrrolidone as stabilizer in ionic liquids, 1-butyl-3methyl imidazolium tetrafluoroborate, [Bmirn][BF(4)] and N,N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium bis(trifluoro-methanesulfonyl)amide, [DEME][TFSA]. The obtained particles had a unique shape because Nylon-6 is a crystalline polymer. Viscosity-average molecular weights of Nylon-6 prepared in [Bmirn][BF(4)] and [DEME][TFSA] at 180 degrees C for 48 h were 4200 and 2200, respectively.

  WILEY-V C H VERLAG GMBH, 2010, MACROMOLECULAR SYMPOSIA, 288, 49 - 54, English

  [Refereed]

  International conference proceedings


• Preparation of onion-like multilayered particles comprising mainly poly-(iso-butyl methacrylate)-block-polystyrene by two-step AGET ATRP

  Yukiya Kitayama, Mika Yorizane, Yasuyuki Kagawa, Hideto Minami, Per B. Zetterlund, Masayoshi Okubo

  Synthesis of multilayered composite polymer particles comprising mainly poly(iso-butyl methacrylate)block-polystyrene (PiBMA-b-PS) has been carried out by the use of two-step activator generated by electron transfer for atom transfer radical polymerization (AGET ATRP) in aqueous microsuspension. PiBMA-Br macroinitiator seed particles were prepared in the first step, followed by swelling with styrene and second step (seeded) polymerization. The blocking efficiency in the second step was found to be crucial with regards to the resulting particle morphology. A disordered sea-island morphology was obtained when the blocking efficiency was 47% (73% conversion), whereas a blocking efficiency of 61% (71% conversion) resulted in the formation of multilayered particles. High blocking efficiency can be achieved by careful adjustment of the activation rate by proper choice of polymerization temperature and amount of reducing agent (ascorbic acid). (C) 2009 Published by Elsevier Ltd.

  ELSEVIER SCI LTD, Jul. 2009, POLYMER, 50(14) (14), 3182 - 3187, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Thermal Properties of Hexadecane Encapsulated in Poly(divinylbenzene) Particles

  Preeyaporn Chaiyasat, Toyoko Suzuki, Hideto Minami, Masayoshi Okubo

  The thermal properties of n-hexadecane (HD) encapsulated in crosslinked capsule particles containing a water and/or air domain were studied from the viewpoint of heat-storage applications. The capsule particles were prepared by the microsuspension polymerization of divinylbenzene at 70 degrees C with the self-assembling of phase-separated polymer method that we developed. In the differential scanning calorimetric thermograms, pure HD had a single solidification temperature (T(s)) peak at 15 degrees C, whereas the encapsulated HD containing a water domain had two peaks at 6 and 1 degrees C. That is, the encapsulated HD containing the water domain required a longer time and lower temperature to complete the solidification than pure HD, which was negative for heat-storage applications. However, once the particles were dried and the water domain was replaced with air, the problem with the partially lowered T, improved. The air domain was also found in the encapsulated HD core after solidification because of the shrinkage of HD. The presence of the air domain did not affect the thermal stability of the encapsulated HD. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 112: 3257-3266, 2009

  JOHN WILEY & SONS INC, Jun. 2009, JOURNAL OF APPLIED POLYMER SCIENCE, 112(6) (6), 3257 - 3266, English

  [Refereed]

  Scientific journal


• Preparation and Characterization of Stimuli-Responsive Composite Polymer Particles Bearing Fluorescein Sodium (FNa)

  H. Ahmad, M. Z. Kobir, H. Minami, M. M. Rahman, M. R. Karim, M. A. J. Miah

  A synthetic route for the preparation of dye labelled stimuli-responsive composite polymer particles is presented. Polystyrene (PS) particles were first prepared by dispersion polymerization in ethanol media in presence of fluorescein sodium dye. The incorporation of dye in PS particles was confirmed by UV-visible absorption spectra, fluorescence measurement and H-1 NMR spectra. Then PS/poly(2-dimethylaminoethyl methacrylate-N-isopropyl acrylamide-ethylene glycol dimethacrylate)[PS/P(DM-NIPAM-EGDM)] composite polymer particles were prepared by seeded copolymerization. Adsorption behavior of surfactants and macromolecules on composite polymer particles were investigated at different temperatures and pH values. Results indicated that PS/P(DM-NIPAM-EGDM) composite polymer particles bearing FNa has strong pH-dependent adsorption characteristics. The temperature-responsive property has however been reduced as compared to the previously reported bare PS/P(DM-NIPAM-EGDM) composite polymer particles.

  M D PUBLICATIONS, Apr. 2009, JOURNAL OF POLYMER MATERIALS, 26(2) (2), 215 - 225, English

  [Refereed]

  Scientific journal


• Emulsifier-Free, Organotellurium-Mediated Living Radical Emulsion Polymerization of Butyl Acrylate

  Masayoshi Okubo, Yusuke Sugihara, Yukiya Kitayama, Yasuyuki Kagawa, Hideto Minami

  Organotellurium-mediated living radical polymerization (TERP) of n-butyl acrylate (BA) in emulsifier-free emulsion polymerization system was carried out for the first time, using the in situ nucleation technique via self-assembly of the propagating amphiphilic polymer chains derived from water-soluble TERP agent, poly(methacrylic acid)-methyltellanyl, with water-soluble thermal initiator, 4,4'-azobis(4-cyanovaleric acid), as a radical source at 60 degrees C. The polymerization proceeded with high control/livingness to high conversion without coagulation, resulting in nanosized poly(BA) particles. The difference in the stirring rates of the polymerization system, where the whole monomer dispersed as droplets at a high rate or it existed as an upper layer on the aqueous medium at a low rate, had a great influence both on the rate of polymerization and on the degree of the control/livingness. On both of them, the polymerization with the high stirring rate gave more desirable results than those with the low rate.

  AMER CHEMICAL SOC, Mar. 2009, MACROMOLECULES, 42(6) (6), 1979 - 1984, English

  [Refereed]

  Scientific journal


• Preparation of Composite Polymer Particles by Seeded Dispersion Polymerization in Ionic Liquids

  Hideto Minami, Kazuhiro Yoshida, Masayoshi Okubo

  Submicron-sized monodisperse PS particles were prepared by dispersion polymerization of styrene in ionic liquids with poly(vinylpyrrolidone) as stabilizer. Seeded dispersion polymerization of MMA was subsequently carried out with PS seeds in [Bmim][BF(4)] to prepare PS/PMMA composite particles. Observation of the obtained particles of ultrathin cross-sections with a scanning and transmission electron microscope revealed that no secondary nucleation occurred during the seeded dispersion polymerization and that the particles have a core-shell morphology consisting of a PS core and a PMMA shell. Successful preparation of PS/PMMA composite particles in an ionic liquid has thus been demonstrated. Moreover, PS/PAA (PS-core/PAA-shell) composite particles were prepared by seeded dispersion polymerization in [DEME][TFSI], illustrating that hydrophobic/hydrophilic composite particles can be readily prepared in the ionic liquid.

  WILEY-V C H VERLAG GMBH, 2009, MACROMOLECULAR SYMPOSIA, 281, 54 - 60, English

  [Refereed]

  International conference proceedings


• Preparation of hollow poly(divinyl benzene) particles with multiple holes in the shell by microsuspension polymerization with the SaPSeP method

  Yuko Hata, Toyoko Suzuki, Hideto Minami, Masayoshi Okubo

  Hollow polymer particles with multiple holes in the shell were prepared by aqueous microsuspension polymerization of micrometer-sized, monodisperse divinyl-benzene/n-hexadecane droplets in the presence of sodium dodecyl sulfate (SDS) at concentrations above 4 mM utilizing the Self-assembling Phase-Separated Polymer (SaPSeP) method developed by the authors. The total surface area of the holes per particle increased with an increase in the SDS concentration. At [SDS] = 10 mM, "flower-like" non-spherical particles were formed.

  SPRINGER, Nov. 2008, COLLOID AND POLYMER SCIENCE, 286(13) (13), 1561 - 1567, English

  [Refereed]

  Scientific journal


• Preparation of microcapsules containing a curing agent for epoxy resin by polyaddition reaction with the self-assembly of phase-separated polymer method in an aqueous dispersed system

  Hideto Minami, Hiroyuki Kanamori, Yuko Hata, Masayoshi Okubo

  To prepare cured epoxy resin particles encapsulating a curing agent (diamine), the self-assembly of phase-separated polymer (SaPSeP) method was developed to be applicable to polyaddition reaction of a stoichiometrically imbalanced system. The SaPSeP method was developed by the authors for preparation of micrometer-sized, hollow cross-linked polymer particles by radical polymerization based on the self-assembly of phase-separated polymer at the inner interface of particles. Although a polyaddition reaction, in general, requires that the reactants are in stoichiometric balance for the cure reaction to proceed well, diamine was successfully encapsulated within a cured epoxy resin shell by utilizing the SaPSeP method regardless of stoichiometric imbalance. The results provide further Support of the previously proposed SaPSeP mechanism for the formation of hollow particles. Moreover. Such diamine Capsules can be employed in one-component epoxy adhesives.

  AMER CHEMICAL SOC, Sep. 2008, LANGMUIR, 24(17) (17), 9254 - 9259, English

  [Refereed]

  Scientific journal


• Preparation of micrometer-sized, monodisperse, hollow polystyrene/poly(ethylene glycol dimethacrylate) particles with a single hole in the shell

  Mizuki Ito, Yumiko Furukawa, Hideto Minami, Masayoshi Okubo

  Micrometer-sized, monodisperse, hollow polystyrene (PS)/poly(ethylene glycol dimethacrylate) (PEGDM) composite particles with a single hole in the shell were prepared by seeded polymerization using (ethylene glycol dimethacrylate/xylene)-swollen PS particles in the presence of sodium dodecyl sulfate (SDS). Single holes were observed at SDS concentrations above 3 mM, much lower than in the PS/polydivinylbenzene (PDVB) system previously reported (above 45 mM). Phase separation inside droplets occurred at lower conversion in the PEGDM system than the PDVB system. Phase separation in the droplet at the early stage of the polymerization is an important factor for the formation of the single hole in the shell.

  SPRINGER, Sep. 2008, COLLOID AND POLYMER SCIENCE, 286(11) (11), 1335 - 1341, English

  [Refereed]

  Scientific journal


• Preparation of polystyrene particles by dispersion polymerization in an ionic liquid

  Hideto Minami, Kazuhiro Yoshida, Masayoshi Okubo

  Submicron-sized monodisperse polystyrene (PS) particles were successfully prepared by dispersion polymerization of styrene in an ionic liquid, N,N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium bis(trifluoromethanesulfonyl)imide ([DEME][TFSI]) at 70 degrees C with poly(vinyl pyrrolidone) (PVP) as a stabilizer. At the optimum PVP and styrene concentrations with regard to preparation of stable polymer particles, the number-average diameter and coefficient of variation were 350 nm and 5.7%, respectively. The particle size increased with a decrease in the PVP concentration and an increase in the styrene concentration. Moreover, we succeeded in producing PS particles by thermal polymerization in the absence of a radical initiator at 130 degrees C in [DEME][TFSI] using a conventional reactor (not autoclave) utilizing the advantages of non-volatility and thermal stability of the ionic liquid.

  WILEY-BLACKWELL, Apr. 2008, MACROMOLECULAR RAPID COMMUNICATIONS, 29(7) (7), 567 - 572, English

  [Refereed]

  Scientific journal


• Preparation of divinylbenzene copolymer particles with encapsulated hexadecane for heat storage application

  Preeyaporn Chaiyasat, Yumiko Ogino, Toyoko Suzuki, Hideto Minami, Masayoshi Okubo

  From the viewpoint of heat storage application, encapsulation of n-hexadecane (HD) was carried out by microsuspension copolymerizations of divinylbenzene (DVB) and acrylic monomers (butyl acrylate, BA; ethyl acrylate, EA) utilizing the self-assembling of phase-separated polymer (SaPSeP) method proposed by the authors. The heat of solidification (H-s) of encapsulated HD in the micron-sized, cross-linked particles was determined by the differential scanning calorimeter (DSC). H-s of the encapsulated HD in poly(DVB) particles was much lower than that of pure HD, but it was increased with BA or EA content copolymerized up to that of pure HD. Such an influence of encapsulation on the H-s was discussed.

  SPRINGER, Feb. 2008, COLLOID AND POLYMER SCIENCE, 286(2) (2), 217 - 223, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Atom transfer radical polymerization of iso-butyl methacrylate in microemulsion with cationic and non-ionic emulsifiers

  Yasuyuki Kagawa, Masahiro Kawasaki, Per B. Zetterlund, Hideto Minami, Masayoshi Okubo

  Direct atom transfer radical polymerization (ATRP) of iso-butyl methacrylate in microemulsion has been performed successfully for the first time. ATRP was performed at 40 degrees C with different emulsifier systems: i) the cationic emulsifier n-tetradecyltrimethylammonium bromide (TTAB); and ii) mixed emulsifier systems based on TTAB and the non-ionic emulsifiers Emulgen 911 or Emulgen 931. All polymerizations proceeded in a controlled/living fashion, and the microemulsions were transparent with particle diameters less than 15 nm. The emulsifier system TTAB/Emulgen 911 exhibited better control than TTAB only. This is proposed to be caused by complex formation between Emulgen 911 in the organic phase and CuBr(2) (the deactivator), thus reducing the extent of exit of CuBr2 to the aqueous phase.. The more hydrophilic Emulgen 931 did not lead to improved control.

  WILEY-BLACKWELL, Dec. 2007, MACROMOLECULAR RAPID COMMUNICATIONS, 28(24) (24), 2354 - 2360, English

  [Refereed]

  Scientific journal


• Polystyrene-silica colloidal nanocomposite particles prepared by alcoholic dispersion polymerization

  Andreas Schmid, Syuji Fujii, Steven P. Armes, Carlos A. P. Leite, Fernando Galembeck, Hideto Minami, Naohiko Saito, Masayoshi Okubo

  Micrometer-sized silica-stabilized polystyrene latex particles and submicrometer-sized polystyrene - silica nanocomposite particles have been prepared by dispersion polymerization of styrene in alcoholic media in the presence of a commercial 13 or 22 nm alcoholic silica sol as the sole stabilizing agent. Micrometer-sized near-monodisperse silica-stabilized polystyrene latexes are obtained when the polymerization is initiated with a nonionic AIBN initiator. These particles are stabilized by silica particles that are present on the latex surface at submonolayer concentration. The total silica content is no greater than 1.1 wt %, which corresponds to a silica sol incorporation efficiency of less than 1.3%. Reduction of the initial silica sol concentration led to a systematic increase in the mean latex diameter. In contrast, submicrometer-sized polystyrene-silica nanocomposite particles are obtained when the polymerization is initiated with a cationic azo initiator. The silica contents of these nanocomposite particles are significantly higher, ranging up to 29 wt %. Zeta potential measurements, XPS, and electron spectroscopy imaging by transmission electron microscopy (ESI/TEM) studies reveal a well-defined core - shell morphology for these particles, whereby the core is polystyrene and the shell comprises the silica sol. After calcination, these nanocomposite particles can form hollow silica capsules. Variation of the initial silica sol and initiator concentration has relatively little effect on the final particle size and silica content of these polystyrene - silica nanocomposite particles, but indicates silica sol incorporation efficiencies up to 72%.

  AMER CHEMICAL SOC, May 2007, CHEMISTRY OF MATERIALS, 19(10) (10), 2435 - 2445, English

  [Refereed]

  Scientific journal


• Atom transfer radical polymerization in miniemulsion: partitioning effects of Copper(I) and Copper(II) on polymerization rate, livingness, and molecular weight distribution

  KAGAWA Yasuyuki, ZETTERLUND Per Bo, MINAMI Hideto, OKUBO Masayoshi

  2007, Macromolecules, 40, 3062-3069, English

  [Refereed]

  Scientific journal


• Nitroxide-mediated radical dispersion polymerization of styrene in supercritical carbon dioxide using a poly(dimethylsiloxane-b-methyl methacrylate) stabilizer

  Ronan McHale, Fawaz Aldabbagh, Per B. Zetterlund, Hideto Minami, Masayoshi Okubo

  Nitroxide-mediated controlled/living dispersion polymerization of styrene in supercritical carbon dioxide (scCO(2)) has been performed successfully to high conversion using N-tert-N-butyl-N-[1-diethylphosphono-(2,2-dimethylpropyl)] nitroxide (SG1) and a poly(dimethylsiloxane-b-methyl methacrylate) stabilizer at 110 degrees C. The molecular weight distributions were narrow (M-w/M-n = 1.12-1.43), and the number-average molecular weight (M-n) values agreed well with theory. A large excess of free SG1 was required to obtain satisfactory control in the dispersion polymerization, possibly due to SG1 partitioning. The critical degree of polymerization at which the polymer precipitates (J(crit)) was determined as 28 by visual observation using a novel approach. Polymerizations conducted in solution ( toluene) proceeded at a similar rate (similar to 20% faster) to those in scCO(2). The number of chains increased with conversion in both dispersion and solution, with the greater increase being observed in the dispersion system.

  AMER CHEMICAL SOC, Oct. 2006, MACROMOLECULES, 39(20) (20), 6853 - 6860, English

  [Refereed]

  Scientific journal


• Morphology of composite particles prepared by two-step dispersion polymerization in supercritical carbondioxide

  Masayoshi Okubo, Hideto Minami, Junji Shigematsu, Shintaro Kuwahara

  Recently, in addition to water, there is increasing interest in carrying out chemical reactions and extractions in environmentally benign solvents such as supercritical carbon dioxide (scCO2. The use of scCO2 as a medium for polymerizations has several potential advantages: low cost, no toxicity, eases of medium removal and recycling and marked variations of solubility power, viscosity and polarity by relatively small changes in temperature and pressure without altering medium composition We have successfully produced PMMA particles by dispersion polymerizations in scCO 2 with PDMS-based azoinitiator as an inistab (an initiator + a colloidal stabilizer). Control of morphology is one of the functionalization of particles in their applications. To our knowledge, the first report on the preparation of composite particles by seeded dispersion polymerization in scCO2 was reported by DeSimone. However, several aspects remain to be clarified. In this study, micron-sized PMMA/PS composite particles having "a gradient sea-islands structure" were prepared by two-step dispersion polymerization in scCO2.

  2006, Polymer Preprints, Japan, 55(2) (2), 3746 - 3747, Japanese

  International conference proceedings


• Preparation of polymer particles by dispersion polymerization in an ionic liquid

  Hideto Minami, Kazuhiro Yoshida, Masayoshi Okubo

  In the last decade, there has been increasing interest in the use of ionic liquids, which are salts that melt at ambient temperature, for electrochemical and separations processes and as media for chemical and biochemical synthesis. The unique properties exhibited by ionic liquids can lead to differing solvent behavior, and differing chemical reaction. Ionic liquids are considered as environmental friendly solvents due to their low vapor pressures, chemical and thermal stability, and non-flammability. In the field of polymer chemistry, application of ionic liquids as solvents for polymerization processes is gradually receiving increased attention. However, to our knowledge preparation of polymer particles in an ionic liquid has not been reported. In this presentation, preparation of polystyrene (PS) particles was demonstrated for the first time in dispersion polymerization of styrene in an ionic liquid, N,N-diethyl-N-methyl-N-(2-methoxyethyl) ammonium bis(trifluoromethanesulfonyl) imide (DEMMA][TFSI]). At the optimum PVP and styrene concentrations, submicron-sized, monodisperse PS particles were successfully prepared. Moreover, we succeeded in producing PS particles by thermal polymerization (i.e. in the absence of a radical initiator) at 130°C in [DEMMA][TESI] with conventional reactor (not autoclave) utilizing the advantages of non-volalitv and thermal stabilitv.

  2006, Polymer Preprints, Japan, 55(2) (2), 4156 - 4157, Japanese

  International conference proceedings


• Nitroxide-mediated radical dispersion polymerization of styrene in supercritical carbon dioxide

  Ronan McHale, Fawaz Aldabbagh, Per B. Zetterlund, Hideto Minami, Masayoshi Okubo

  Supercritical carbon dioxide (scCO2) has attracted attention as a benign, inexpensive, non-flammable and widely available polymerization medium. Nitroxide-mediated controlled/living radical dispersion polymerizations of styrene have been successfully carried out in scCO2 at 110°C based on the N-tert-butyl-N-(1-diethylphosphono-2,2-dimethylpropyl) nitroxide (SG1). Colloidal stabilization was achieved by using either (i) a poly(dimethylsiloxane-b-methyl methacrylate) stabilizer, or (ii) a poly(dimethylsiloxane) based alkoxyamine inistab, which operates as initiator and stabilizer simultaneously. The polymerizations proceeded in a controlled/living fashion with low polydispersities and number-average molecular weights increasing with conversion close to the theoretical values. The polymeric products were recovered as powders at high conversion after venting of the CO2. The particle diameters were measured to be approximately 150 nm by dynamic light scattering after re-dispersal in n-hexane.

  2006, Polymer Preprints, Japan, 55(2) (2), 3748 - 3749, English

  International conference proceedings


• Preparation and thermodynamic stability of disc-like polymer particles

  Teruhisa Fujibayashi, Hideto Minami, Masayoshi Okubo

  Polymer particles produced by heterogeneous polymerization are normally spherical. However, in the course of investigations on the synthesis of composite particles, various nonspherical particles have been prepared with properties different from those of spherical particles. It is important to be able to control such nonspherical shapes from an applications point of view. In this study, micron-sized, monodisperse polymer particles having unique "disc-like" shapes were prepared by seeded dispersion polymerization of 2-ethylhexyl methacrylate (EHMA) with polystyrene seed particles in the presence of saturated hydrocarbon droplets in methanol/water. Particle shapes could be controlled by the polymerization conditions. Thermodynamic consideration of particle stabilities indicated that a "hamburger- like" morphology, which is a precursor of the disc like particles, was in fact less stable than a hemispherical morphology. The hamburger-like morphology changed to a hemispherical morphology by heating at 150°C.

  2006, Polymer Preprints, Japan, 55(1) (1), 1327, Japanese

  International conference proceedings


• Dispersion polymerization of methyl methacrylate in scCO2 using PDMS-b-PMMA as stabilizer

  Hideto Minami, Shintaro Kuwahara, Masayoshi Okubo

  We report the preparation of PMMA particles by dispersion polymerization of MMA in scCO2 with PDMS-b-PMMA as stabilizer, prepared by control/living radical polymerization. PDMS-b-PMMA was found to be an effective stabilizer in scCO2, leading to excellent PMMA yield and monodisperse PMMA particles. Futhermore, monodisperse PMMA/PS composite polymer particles were prepared by seeded dispersion polymerization of styrene in scCO2 with PDMS-b-PMMA as stabilizer. They had a sea-islands morphology with a high number of PS domains dispersed in a continuous PMMA phase.

  2006, Polymer Preprints, Japan, 55(1) (1), 145, Japanese

  International conference proceedings


• Effect of temperature in seeded ATRP; experiment and simulation

  Yasuyuki Kagawa, Per B. Zetterlund, Hideto Minami, Masavoshi Okubo

  Atom transfer radical polymerization (ATRP) of styrene using a poly(iso-butyl methacrylate) macroinitiator and dNbpy ligand have been carried out in emulsion (seeded ATRP) and bulk at various temperatures. It was found that the rate of polymerization was higher in emulsion than in bulk, due to partitioning of CuIIBr2 (deactivator) between the particles and the aqueous phase, resulting in a lower CuIIBr 2 concentration at the locus of polymerization. The magnitude of the increase in the rate of polymerization was in quantitative agreement with simulations based on literature values of partition coefficients of Cu IIBr2.

  2006, Polymer Preprints, Japan, 55(1) (1), 144, Japanese

  International conference proceedings


• Effect of emulsifier in microemulsion atom transfer radical polymerization

  Masahiro Kawasaki, Yasuyuki Kagawa, Hideto Minami, Masayoshi Okubo

  Poly(iso-butyl methacrylate) nanoparticles having narrow molecular weight distribution were successfully prepared by microemulsion ATRP of iso-butyl methacrylate with cationic and nonionic emulsifiers. In the case of the polymer particles prepared using Emulgen 911 (polyoxyethylene nonyl phenyl ether), which has a low HLB value, the molecular weight distribution was narrower than when using Emulgen 931, which has a high HLB value. This result seems to be related to the incorporation of nonionic emulsifier into the polymer particles.

  2006, Polymer Preprints, Japan, 55(1) (1), 485, Japanese

  International conference proceedings


• Comartmentalization in Atom Transfer Radical Polymeriztion (ATRP) in Dispersed Systems

  KAGAWA Yasuyuki, ZETTERLUND Per Bo, MINAMI Hideto, OKUBO Masayoshi

  2006, Macromol. Theory and Simul, 15, 608-613, English

  [Refereed]

  Scientific journal


• Production of poly(methyl methacrylate) particles by dispersion polymerization with organic peroxide in the presence of trimethylsiloxy terminated poly(dimethylsiloxane) in supercritical carbon dioxide

  FUJII Syuji, MINAMI Hideto, OKUBO Masayoshi

  Nov. 2005, Colloid and Polymer Science, 284,327-333, English

  [Refereed]

  Scientific journal


• Preparation of hollow polymer particles with single hole in the shell by SaPSeP

  MINAMI Hideto, KOBAYASHI Hiroshi, OKUBO Masayoshi

  Oct. 2005, Langmuir, 21,5655-5658, 8703 - 8708, English

  [Refereed]

  Scientific journal


• Micron-sized, Monodisperse, Snowman/Confetti-shaped Polymer Particles by Seeded Dispersion Polymerization

  OKUBO Masayoshi, FUJIBAYASHI Teruhisa, YAMADA Masahiro, MINAMI Hideto

  Aug. 2005, Colloid Polym. Sci., 283,1041-1045, 793 - 798, English

  [Refereed]

  Scientific journal


• Production of cured epoxy resin particles having one hollow by polyaddition reaction

  MINAMI Hideto, OKUBO Masayoshi, OSHIMA Yoshiteru

  Jun. 2005, Polymer, 46,1051-1056, English

  [Refereed]

  Scientific journal


• Preparation of block copolymer particles by two-step atom transfer radical polymerization in aqueous media and its unique morphology

  KAGAWA Yasuyuki, MINAMI Hideto, OKUBO Masayoshi, ZHOU Jian

  Jun. 2005, Polymer, 46,1045-1049, 1045 - 1050, English

  [Refereed]

  Scientific journal


• Nitroxede-Mediated Controlled/Living Free Radical Copolymerization of Styrene and Divinylbenzene in Aqueous Miniemulsion

  ZETTERLUND Per Bo, MD. Nur Alam, MINAMI Hideto, OKUBO Masayoshi

  Jun. 2005, Macromolecular Rapid Communications, 26,955-960, 955 - 960, English

  [Refereed]

  Scientific journal


• Preparation of cross-linked polymer particles encapsulating n-hexadecane by SaPSeP method

  Toyoko Suzuki, Hideto Minami, Yumiko Ogino, Masayoshi Okubo

  Recently, we proposed the technique to prepare about micron-sized, monodisperse, cross-linked polymer particles having one hollow by suspension polymerization for DVB/toluene droplets dissolving polystyrene (PS) and benzoyl peroxide, and suggested the formation mechanism. When the droplets did not contain PS, no hollow particle was obtained. The polymer dissolved in the droplets was needed to promote phase separation of PDVB prepared during the polymerization. The method is named the "self assembling of phase separation polymer (SaPSeP)" method. Moreover, hollow particles were obtained with no PS using nonsolvent of PDVB, ex. n-hexadecane, in place of toluene. In a series of this study, the PDVB/HD particles having a water-domain were observed. In this research, in order to clarify the diffusion mechanism of water and formation mechanism more in detail, we will try to produce PDVB/HD particles having hollow structure by SaPSeP method.

  2005, Polymer Preprints, Japan, 54(1) (1), 1083, Japanese

  International conference proceedings


• The synthesis of high light scattering polymer particles by suspension polymerization

  Masayoshi Okubo, Hideto Minami, Hirotsugu Kawata

  Polymer particles with internal hollow(s) are used as hinding or opacifying agents in coating and molding compositions. Recently, monodisperse, cross-linking polymer particles about 5 μ m in sized with one hollow at the center were produced by seeded polymerization of highly [divinylbenzene (DVB)/toluene]-swollen polystyrene (PS) particles prepared by the dynamic swelling method (DSM). On the basis of the same formation mechanism, hollow polymer particles were also produced earlier by suspension polymerization of divinylbenzene (DVB)/toluene droplets dissolving polystyrene (PS) and benzoyl peroxide (BPO), though they were polydisperse. In this presentation, in order to enhance the light scattering ability of the polymer particles having one hollow structure, we try to prepare hollow PS/polydivinylbenzene (PDVB) composite particles containing titanium oxide (TiO2) by the suspension polymerization.

  2005, Polymer Preprints, Japan, 54(1) (1), 1082, Japanese

  International conference proceedings


• Preparation of hollow polymer particles with single hole in the shell

  Hideto Minami, Hiroshi Kobayashi, Yumiko Furukawa, Masayoshi Okubo

  The influence of emulsifier on the shell formation of the hollow polymer particles prepared by the SaPSeP method, which was proposed by the authors for the preparation of micron-sized hollow polymer particles, was investigated. A single hole was observed in the shell of the hollow particles prepared by seeded polymerization of micron-sized, monodisperse divinylbenzene/p-xylene droplets in the presence of dodecylbenzenesulfonic acid sodium salt (SDBS), which were prepared by the dynamic swelling method. The fraction of the hollow particles having the single hole and the area of the hole increased with the SDBS concentration. In the cases of SDBS, n-tetradecyltrimethylammonium bromide and Emulgen 911 (polyoxyethylene lauryl ether), the similar phenomena to SDS were observed.

  2005, Polymer Preprints, Japan, 54(1) (1), 1081, Japanese

  International conference proceedings


• Preparation of epoxy resin microcapsules by SaPSeP method wfth polyaddition reaction and its application

  Hideto Minami, Hiroyuki Kanamori, Masayoshi Okubo

  Polymer particles are used as films in many industrial fields, in painting, printing etc. Moreover, in recent years significant attention has turned to direct application of particles, as exemplified in the biomedical field and in microelectronics. We had suggested a novel swelling method of seed polymer particles with a large amount of monomer which was named the "dynamic swelling method" in order to prepare polymer particles having more than 5 um-size. Moreover, the technique was developed to prepare about 5-um-sized, monodisperse, cross-linked polymer particles having one hollow by seeded polymerization and the formation mechanism was suggested. The method is named the "Self-assembling of Phase Separated Polymer (SaPSeP)" method The SaPSeP method was developed to be applicable to polyaddition reaction system of epoxy resin with diamine. Cured epoxy resin particles having one hollow were successfully prepared by the polyaddition reaction in the dispersed system In this presentation, we try to preparing cued epoxy resin particles encapsulating curing agent (diamin) by polyaddition reaction in suspension system and the mechanism of the SaPSeP method more in detail is discussed.

  2005, Polymer Preprints, Japan, 54(2) (2), 2997 - 2998, Japanese

  International conference proceedings


• Preparation of block copolymer by atom transfer radical seeded emulsion polymerization

  M Okubo, H Minami, J Zhou

  Poly(i-butyl methacrylate)-polystyrene block copolymer was successfully prepared in an aqueous medium by two-step atom transfer radical polymerization (ATRP), mini-emulsion- and seeded-ATRP, in which ethyl 2-bromoisobutyrate/CuBr/4,4'-dinonyl-2,2'-dipyridyl initiator system was used. The block copolymer had narrow molecular weight distribution (Mw/Mn=1.1) and the number-average molecular weight measured by gel permeation chromatography agreed with the calculated value.

  SPRINGER, May 2004, COLLOID AND POLYMER SCIENCE, 282(7) (7), 747 - 752, English

  [Refereed]

  Scientific journal


• Production of poly(methyl methacrylate) particles by dispersion polymerization with mercaptopropyl terminated poly(dimethylsiloxane) stabilizer in supercritical carbon dioxide

  S Fujii, H Minami, M Okubo

  Poly(methyl methacrylate) (PMMA) particles were produced by dispersion polymerization of methyl methacrylate in the presence of mercaptopropyl terminated poly(dimethylsiloxane) (MP-PDMS) in supercritical carbon dioxide at about 30 MPa for 24 h at 65 degreesC. The particle diameter could be controlled in a size range of submicron to micron by varying MP-PDMS concentration. The MP-PDMS worked as not only a chain transfer agent but also a colloidal stabilizer, which was named "transtab."

  SPRINGER-VERLAG, Apr. 2004, COLLOID AND POLYMER SCIENCE, 282(6) (6), 569 - 574, English

  [Refereed]

  Scientific journal


• Production of poly(methyl methacrylate) particles by dispersion polymerization with aminopropyl-terminated poly (dimethylsiloxane) stabilizer in supercritical carbon dioxide

  M Okubo, S Fujii, H Minami

  Micron-sized poly(methyl methacrylate) particles were produced by dispersion polymerization of methyl methacrylate with aminopropyl-terminated poly(dimethylsiloxane) as a colloidal stabilizer in supercritical carbon dioxide at about 30 MPa for 24 h at 65 degreesC.

  SPRINGER-VERLAG BERLIN, 2004, AQUEOUS POLYMER DISPERSIONS, 124, 121 - 125, English

  [Refereed]

  International conference proceedings


• Production of hallow particles by suspension polymerization of divinylbenzene with nonsolvent

  M Okubo, Y Konishi, H Minami

  Suspension polymerization for divinylbenzene droplets including n-hexadecane as a non-solvent for polydivinylbenzene (PDVB) was carried out. The hollow particles were produced under conditions where phase separation in the droplet occurred at an early stage of polymerization. The time when phase separation begins, depends on both the content of n-hexadecane and the crosslinking reaction of PDVB. Phase separation behavior during polymerization is discussed by means of phase diagrams.

  SPRINGER-VERLAG BERLIN, 2004, AQUEOUS POLYMER DISPERSIONS, 124, 54 - 59, English

  [Refereed]

  International conference proceedings


• Micron-sized, monodisperse polymer particles having reversibly transformable shapes

  M Okubo, H Minami, K Morikawa

  Micron-sized, monodisperse, cross-linked, hollow polymer particles having transformable shapes were produced by seeded polymerization of (divinylbenzene/vinylbiphenyl/xylene)-swollen polystyrene particles prepared utilizing the dynamic swelling method. The influence of the shell strength, which was controlled by shell thickness, cross-linking density and solvent-release temperature, on shape transformation of the hollow particles between sphere and non-sphere, respectively, based on the absorbed and release of solvent was discussed in comparison with a theoretical pressure-buckling relationship.

  SPRINGER-VERLAG BERLIN, 2004, AQUEOUS POLYMER DISPERSIONS, 124, 42 - 46, English

  [Refereed]

  International conference proceedings


• Dispersion atom transfer radical polymerization of methyl methacrylate with bromo-terminated poly(dimethylsiloxane) in supercritical carbon dioxide

  H Minami, Y Kagawa, S Kuwahara, J Shigematsu, S Fujii, M Okubo

  Poly(dimethylsiloxane)-block-poly(methyl methacrylate) particles were successfully prepared by dispersion atom transfer radical polymerization of methyl methacrylate with bromo-terminated poly(dimethylsiloxane) as inistab ((i) under bar(n) under bar(i) under bar tiator + (s) under bar(t) under bar(a) under bar(b) under bar ilizer) in supercritical carbon dioxide medium (scCo(2)). The block copolymers had narrow molecular weight distributions (M-w/M-n approx. 1.25), indicating that the polymerization in scCO(2) was conducted in a controlled manner.

  VSP BV, 2004, DESIGNED MONOMERS AND POLYMERS, 7(6) (6), 553 - 562, English

  [Refereed]

  Scientific journal


• Production of polyacrylonitrile particles by precipitation polymerization in supercritical carbon dioxide

  M Okubo, S Fujii, H Maenaka, H Minami

  Polyacrylonitrile particles were produced by precipitation polymerization of acrylonitrile (AN) without any colloidal stabilizer in supercritical carbon dioxide as a polymerization medium at about 30 MPa for 24 h at 65 degreesC at different initiator concentrations (0.8-45.2 mmol/l) and at different AN concentrations (10-40% w/v). An increase in the initiator concentration led to increases in the conversion and in the degree of coagulation and to a decrease in the molecular weight. At AN concentration of 20% w/v, micron-sized, relatively monodisperse polyacrylonitrile particles with clean and uneven surfaces were produced.

  SPRINGER-VERLAG, Oct. 2003, COLLOID AND POLYMER SCIENCE, 281(10) (10), 964 - 972, English

  [Refereed]

  Scientific journal


• Size effect of monomer droplets on the production of hollow polymer particles by suspension polymerization

  M Okubo, Y Konishi, T Inohara, H Minami

  The effects of viscosity within a droplet and its size on the production of hollow particles by suspension polymerization for divinylbenzene/toluene droplets dissolving polystyrene were studied. When the viscosity was low at the beginning of the phase separation during the polymerization, the poly(divinylbenzene) microgel could adsorb at the interface of the droplet and hollow particles were obtained. Even if the viscosity in the droplet was low, when the droplet size was large, hollow particles were not obtained because the microgel had to move a long distance to be adsorbed at the interface of the droplets.

  SPRINGER-VERLAG, Apr. 2003, COLLOID AND POLYMER SCIENCE, 281(4) (4), 302 - 307, English

  [Refereed]

  Scientific journal


• Thermodynamic analysis of the morphology of monomer-adsorbedm cross-linked polymer particles prepared by the dynamic swelling method and seeded polymerization

  H Minami, ZQ Wang, T Yamashita, M Okubo

  Thermodynamic simulation of the morphology of monomer-adsorbed, cross-linked polymer particles prepared by the dynamic swelling method which the authors proposed was conducted to clarify its thermodynamic stability from the viewpoint of the total interfacial free energy. By comparing it with experimental results reported in previous articles, it was found that the morphology was controlled thermodynamically. Snowman-shaped composite polymer particles having different morphologies were prepared by seeded polymerization of the monomer-adsorbed, cross-linked polymer particles, in which the polymer particles had different cross-linking densities.

  SPRINGER-VERLAG, Mar. 2003, COLLOID AND POLYMER SCIENCE, 281(3) (3), 246 - 252, English

  [Refereed]

  Scientific journal


• Influence of shell strength on shape transformation of micron-sized, monodisperse, hollow polymer particles

  M Okubo, H Minami, K Morikawa

  Micron-sized, monodisperse, non-spherical polymer particles with "rugby ball" and "red blood corpuscle" -like shapes were produced by seeded polymerization of the dispersion of (divinylbenzene/ vinylbiphenyl/xylene)-swollen polystyrene particles prepared by utilizing the dynamic swelling method which the authors proposed in 1991. Their non-spherical shapes were based on buckling of the shell of the resultant hollow particles. In this article, the reversible shape transformation of the hollow composite polymer particle between spherical and such non-spherical shapes was studied in detail by controlling the shell strength. A part of the shell was buckled by external pressure which was caused by evaporation of xylene from the hollow when the shell had the tensile modulus below the critical value calculated from the pressure-buckling relationship of a spherical shell proposed by Uemura. The plasticization of the shell by a good solvent was one of key factors for the shape transformation.

  SPRINGER-VERLAG, Mar. 2003, COLLOID AND POLYMER SCIENCE, 281(3) (3), 214 - 219, English

  [Refereed]

  Scientific journal


• Phase separation in the formation of hollow particles by suspension polymerization for divinylbenzene/toluene droplets dissolving polystyrene

  Y Konishi, M Okubo, H Minami

  Phase-separation behavior within polymerizing divinylbenzene/ toluene droplet dissolving polystyrenes (PS) was investigated to clarify the formation mechanism of the hollow polymer particles by suspension polymerization. No hollow particles were obtained at a low content of low-molecular-weight PS where phase separation occurred at high conversion. On the other hand, hollow particles were obtained at a high content of high-molecular-weight PS where phase separation occurred at low conversion. The phase separation in an early stage of the polymerization, which was promoted by the presence of PS and cross-links of polydivinylbenzene, was a key factor for the formation of the hollow structure.

  SPRINGER-VERLAG, Feb. 2003, COLLOID AND POLYMER SCIENCE, 281(2) (2), 123 - 129, English

  [Refereed]

  Scientific journal


• Production of polystyrene/poly(ethylene glycol dimethacrylate) composite particles encapsulating hinokitiol

  OKUBO Masayoshi, MINAMI Hideto, JING Yumei

  2003, Colloid Polym. Sci.,, 89(3), 706-710, English

  [Refereed]

  Scientific journal


• Preparation of polymer particles by dispersion and precipitation polymerizations in supercritical carbon dioxide using small-scale high-pressure reactors

  FUJII S, MINAMI Hideto, MAENAKA H, OKUBO Masayoshi

  Kobe University, 2003, Mem.Grad.School Sci. & Technol., Kobe Univ., 21-A 1-13, 1 - 13, English

  [Refereed]

  Scientific journal


• Preparation of micron-sized, monodisperse, magnetic polymer particles

  OKUBO Masayoshi, MINAMI Hideto, KOMURA Takanobu

  2003, J. Appl. Polym. Sci.,, 88(2), 428-433, English

  [Refereed]

  Scientific journal


• Production of hollow polymer particles by suspension polymerizations for ethylene glycol dimethacrylate/toluene droplets dissolving styrene-methyl methacrylate copolymers

  M. Okubo, Y. Konishi, T. Inohara, H. Minami

  Suspension polymerizations for ethylene glycol dimethacrylate (EGDM)/toluene droplets dissolving styrene-methyl methacrylate copolymers with different compositions were carried out. Hollow particles were obtained independent of the copolymer composition. In suspension copolymerizations for EGDM/divinyl benzene/toluene droplets dissolving poly(methyl methacrylate), hollow particles were produced at high EGDM content, but not at low EGDM content. Preferential adsorption of the polymer formed by the suspension polymerizations at the interfaces of the droplets over the (co)polymers preliminarily dissolved therein was one of the key factors for the formation of the hollow structure. © 2002 Wiley Periodicals, Inc. J. Appl. Polym. Sci.

  Oct. 2002, Journal of Applied Polymer Science, 86(5) (5), 1087 - 1091, English

  [Refereed]

  Scientific journal


• Preparation of nonspherical polymer particles by spraying aqueous dispersions of hydrophobic solvent droplets into methanol

  Okubo M., Konishi Y., Sebki S., Minami H.

  Springer Science and Business Media LLC, Aug. 2002, Colloid & Polymer Science, 280(8) (8), 765 - 769, English

  [Refereed]

  Scientific journal


• Structural conformation of biomolecules released from temperature-sensitive composite polymer particles - a study by circular dichroism

  Hasan Ahmad, M. Okubo, Y. O. Kamatari, H. Minami

  Springer Science and Business Media LLC, Apr. 2002, Colloid & Polymer Science, 280(4) (4), 310 - 315, English

  [Refereed]

  Scientific journal


• Morphology of micron-sized, monodisperse, nonspherical polystyrene/poly(n-butyl methacrylate) composite particles produced by seeded dispersion polymerization

  M. Okubo, T. Miya, H. Minami, R. Takekoh

  Wiley, Feb. 2002, Journal of Applied Polymer Science, 83(9) (9), 2013 - 2021, English

  [Refereed]

  Scientific journal


• Production of submicron-sized poly(methyl methacrylate) particles by dispersion polymerization with a poly(dimethylsiloxane)-based azoinitiator in supercritical carbon dioxide

  M. Okubo, S. Fujii, H. Maenaka, H. Minami

  Springer Science and Business Media LLC, Feb. 2002, Colloid & Polymer Science, 280(2) (2), 183 - 187, English

  [Refereed]

  Scientific journal


• Production of polydivinylbiphenyl particles by precipitation polymerization in supercritical carbon dioxide

  Masayoshi Okubo, Syuji Fujii, Hiroshi Maenaka, Hideto Minami

  Polydivinylbiphenyl particles were produced by precipitation polymerization of divinylbiphenyl without any stabilizer in supercritical carbon dioxide as polymerization medium at ca. 30 MPa for 24 h at 65 °C at different initiator concentrations (0.5-58.1 mmol l-1). The conversions in all polymerization systems were relatively high. An increase in initiator concentration led to increases in the degree of coagulation and in the amount of low-molecular-weight byproducts and to a decrease in the amount of vinyl groups in the particle.

  2002, Colloid and Polymer Science, 280(12) (12), 1084 - 1090, English

  [Refereed]

  Scientific journal


• Adsorption of styrene on micron-sized, monodisperse, cross-linked polymer particles in a snowman-shaped state by utilizing the dynamic swelling method

  M. Okubo, H. Minami, Z. Wang, E. Ise

  Springer Science and Business Media LLC, Oct. 2001, Colloid & Polymer Science, 279(10) (10), 976 - 982, English

  [Refereed]

  Scientific journal


• Morphology of micron-sized, monomer-adsorbed, crosslinked polymer particles having snowmanlike shapes prepared by the dynamic swelling method

  Masayoshi Okubo, Zhaoqun Wang, Tsuyoshi Yamashita, Eriko Ise, Hideto Minami

  A series of monomer-adsorbed, crosslinked polystyrene/polydivinylbenzene composite particles having snowmanlike shapes were prepared by the dynamic swelling method that the authors had proposed in 1991. The morphology of the snowman-shaped particles was estimated with the contact angle of the monomer phase on the polymer particle. Influences of the kind of monomers and polyvinyl alcohol colloidal stabilizer on the morphology were obviously observed and discussed from the viewpoint of thermodynamic stability.

  Sep. 2001, Journal of Polymer Science, Part A: Polymer Chemistry, 39(18) (18), 3106 - 3111, English

  [Refereed]

  Scientific journal


• Release of toluene from micron-sized, monodispersed, cross-linked, hollow polymer particles

  M. Okubo, H. Minami, Y. Yamamoto

  Springer Science and Business Media LLC, Jan. 2001, Colloid & Polymer Science, 279(1) (1), 77 - 81, English

  [Refereed]

  Scientific journal


• Production of hollow polymer particles by suspension polymerizations for divinylbenzene/toluene droplets dissolving styrene-methyl methacrylate copolymersa

  Masayoshi Okubo, Yuichiro Konishi, Takeshi Inohara, Hideto Minami

  Suspension polymerizations for divinylbenzene/toluene droplets dissolving styrene (S)-methyl methacrylate copolymers having different compositions were carried out. Hollow particles were produced not with the copolymers having low S contents but with those having high S contents. © WILEY-VCH Verlag GmbH.

  2001, Macromolecular Symposia, 175, 321 - 328, English

  [Refereed]

  Scientific journal


• Production of electrically conductive, core/shell polystyrene/polyaniline composite particles by chemical oxidative seeded dispersion polymerization

  M. Okubo, S. Fujii, H. Minami

  Micron-sized, monodispersed, electrically conductive polystyrene (PS)/polyaniline (PAn) composite particles were produced by chemical oxidative seeded dispersion polymerization of aniline at 0 °C with 1.37-μm-sized, monodispersed PS seed particles in HCl aqueous solution, where the pH value was kept at 2.5 with a pH stat. The composite particles consisted of a PS core and a PAn shell. A pellet of the composite particles had a conductivity of 3.4 × 10-3 S/cm.

  2001, Colloid and Polymer Science, 279(2) (2), 139 - 145, English

  [Refereed]

  Scientific journal


• Influence of the kind of end groups of polysterene on the production of hollow particles by suspension polymerization for divinylbenzene/toluene droplets dissolving them

  M. Okubo, Y. Konishi, H. Minami

  Suspension polymerizations for divinylbenzene (DVB)/toluene droplets dissolving polystyrene (PS) having different end groups were carried out. Hollow polymer particles were not obtained with PS having polar sulfate end groups, which were prepared by emulsifier-free emulsion polymerization with potassium persulfate initiator. On the other hand, they were obtained with PS having low polarity isobutyronitrile end groups, which were prepared by solution polymerization with 2,2′-azo-bis (isobutyronitrile) initiator. The interfacial tensions between the water and xylene/toluene (1/1, w/w) mixture solution of PS having polar groups was smaller than that having low polarity groups. From these results, it is concluded that the preferential adsorption of PDVB molecules formed by the suspension polymerization at the interface of the droplets over PS molecules, which depended on the kind of the end groups, is one of the key factors for the formation of the hollow structure.

  2001, Colloid and Polymer Science, 279(5) (5), 519 - 523, English

  [Refereed]

  Scientific journal


• Production of micron-sized, monodisperse, transformable rugby-ball-like-shaped polymer particles

  M. Okubo, H. Minami, K. Morikawa

  Micron-sized, monodisperse, "rugby-ball-like" polymer particles were produced by seeded polymerization for the dispersion of (divinylbenzene/vinylbiphenyl/xylene)-swollen polystyrene particles prepared by utilizing the dynamic swelling method which the authors proposed in 1991. The shape of the composite polymer particle was reversibly transformed between a rugby-ball-like shape and a spherical one by absorbing/releasing toluene.

  2001, Colloid and Polymer Science, 279(9) (9), 931 - 935, English

  [Refereed]

  Scientific journal


• Kinetics of chemical oxidative dispersion polymerization of 3,5-xylidine in aqueous medium using a PH stat method

  H. Minami, M. Okubo, K. Murakami, S. Hirano

  Lead, Wiley, Dec. 2000, Journal of Polymer Science Part A: Polymer Chemistry, 38(23) (23), 4238 - 4246, English

  [Refereed]

  Scientific journal


• Preparation of micron-sized, monodispersed, anomalous polymer particles by utilizing the solvent-absorbing/releasing method

  M. Okubo, Y. Konishi, M. Takebe, H. Minami

  Springer Science and Business Media LLC, Oct. 2000, Colloid & Polymer Science, 278(10) (10), 919 - 926, English

  [Refereed]

  Scientific journal


• Production of micron-sized, monodispersed, multihollow polystyrene/poly(3,5-xylidine) composite particles by chemical oxidative seeded polymerization

  M. Okubo, T. Mukai, H. Minami, S. Fujii

  Springer Science and Business Media LLC, Mar. 2000, Colloid & Polymer Science, 278(3) (3), 275 - 279, English

  [Refereed]

  Scientific journal


• Production of hollow polymer particles by suspension polymerizations for divinylbenzene/toluene droplets dissolving various polymers

  M. Okubo, Y. Konishi, H. Minami

  Suspension polymerizations for divinylbenzene/toluene droplets dissolving different kinds of methacrylate and acrylate homopolymers were carried out. Hollow polymer particles were produced not with high polarity polymers but with low polarity polymers. The results indicate that the preferential adsorption of the homopolymers having high polarity at the interface of the droplets depresses the formation of the hollow structure. A minimum polymer concentration was necessary to produce hollow particles.

  D. Steinkopff-Verlag, 2000, Colloid and Polymer Science, 278(7) (7), 659 - 664, English

  [Refereed]

  Scientific journal


• Production of micron-sized monodispersed anomalous polymer particles having red blood corpuscle shape

  M. Okubo, H. Minami

  Micron-sized monodispersed polymer particles having a 'red blood corpuscle-shape' were produced effectively at the completion of the seeded polymerization for the dispersion of highly (divinylbenzene/toluene)-swollen polystyrene particles prepared in an ethanol/water medium by utilizing the dynamic swelling method under optimum ratios of xylene/divinylbenzene and vinyltoluene/divinylbenzene.

  John Wiley and Sons Ltd, 2000, Macromolecular Symposia, 150, 201 - 210, English

  [Refereed]

  International conference proceedings


• Production of core/shell polystyrene/poly(3,5-xylidine) composite particles by chemical oxidative seeded dispersion polymerization

  M. Okubo, H. Minami, S. Fujii, T. Mukai

  Springer Science and Business Media LLC, Sep. 1999, Colloid & Polymer Science, 277(9) (9), 895 - 899, English

  [Refereed]

  Scientific journal


• Penetration/release behaviors of various solvents into/from micron-sized monodispersed hollow polymer particles

  M Okubo, H Minami, Y Yamamoto

  Elsevier BV, Aug. 1999, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 153(1-3) (1-3), 405 - 411, English

  [Refereed]

  Scientific journal


• Preparation of micron-sized monodispersed highly monomer 'adsorbed' polymer particles having snow-man shape by utilizing the dynamic swelling method with tightly crosslinked seed particles

  M. Okubo, T. Yamashita, H. Minami, Y. Konishi

  Micron-sized, monodispersed highly styrene-'adsorbed' particles having snow-man shape were prepared by the dynamic swelling method (DSM) with tightly cross-linked polymer seed particles as follows. First, 3.8 μm-sized monodispersed polystyrene (PS)/poly(divinylbenzene) (PDVB) (PS/PDVB = 1/10 wt. ratio) composite particles produced by seeded polymerization utilizing DSM were dispersed in an ethanol/water (6/4, w/w) solution dissolving styrene monomer, and poly(vinyl alcohol) as a stabilizer. Second, water was subsequently added to the dispersion with a micro-feeder at a rate of 2.88 ml/h at room temperature. The cross-linked seed particles adsorbed a large amount of styrene onto the surfaces and resulted in monodispersed highly styrene-'adsorbed' snow-man shape particles having about 10 μm in diameter.

  Oct. 1998, Colloid and Polymer Science, 276(10) (10), 887 - 892, English

  [Refereed]

  Scientific journal


• Production of hollow polymer particles by suspension polymerization

  M. Okubo, Y. Konishi, H. Minami

  Polymer particles having single hollow in the inside were successfully prepared by suspension polymerization for divinylbenzene/toluene droplets dissolving polystyrene (PS) in an aqueous solution of poly(vinyl alcohol). Such a hollow polymer particle was not obtained without PS. The hollow structure was affected by the molecular weight and the concentration of PS.

  Jul. 1998, Colloid and Polymer Science, 276(7) (7), 638 - 642, English

  [Refereed]

  Scientific journal


• Formation mechanism of micron-sized monodispersed polymer particles having a hollow structure

  M. Okubo, H. Minami

  Recently, the authors reported that micron-sized mono-dispersed cross-linked polymer particles having a single hollow in the inside were produced by seeded polymerization for the dispersion of (toluene/divinylbenzene)-swollen polystyrene (PS) particles prepared utilizing the dynamic swelling method which the authors had proposed. In this article, the particles at various conversions of the seeded polymerization were observed with an optical microscope in detail. From the obtained results, the formation mechanism of the hollow structure is suggested as follows. As seeded polymerization proceeds, polydivinylbenzene (PDVB) molecules precipitated in the swollen particle are trapped near the interface and gradually pile at the inner surface, which results in a cross-linked PDVB shell. PS which dissolves in the swollen particles is repelled gradually to the inside. After the completion of the polymerization, toluene in the hollow evaporates by drying, and PS clings to the inner wall of the shell uniformly.

  Springer Verlag, 1997, Colloid and Polymer Science, 275(10) (10), 992 - 997, English

  [Refereed]

  Scientific journal


• Control of hollow size of micron-sized monodispersed polymer particles having a hollow structure

  M. Okubo, H. Minami

  Springer Science and Business Media LLC, May 1996, Colloid & Polymer Science, 274(5) (5), 433 - 438, English

  [Refereed]

  Scientific journal


• Production of micron-sized monodispersed cross-linked polymer particles having hollow structure

  Masayoshi Okubo, Hideto Minami, Tsuyoshi Yamashita

  4 μm-sized monodispersed cross-linked polymer particles having hollow structure were produced as follows. First, 1.7 μm-sized monodispersed polystyrene (PS) seed particles produced by dispersion polymerization were dispersed in ethanol/water (7/3, w/w) solution in which divinylbenzene (DVB), benzoyl peroxide (BPO), poly(vinyl alcohol), and toluene was dissolved. The PS seed particles were swollen with DVB, toluene and BPO maintaining high monodispersity throughout the dynamic swelling process where water was slowly added continuously. And then, the seeded polymerization of the (toluene/DVB)-swollen PS particles was carried out.

  John Wiley and Sons Ltd, 1996, Macromolecular Symposia, 101, 509 - 516, English

  [Refereed]

  Scientific journal

• Preparation of Free-standing Composite Gel Particles Incorporating Ionic Liquids Having Thermosensitivity

  Toyoko Suzuki, Hideto Minami

  Sep. 2020, PHAM TECH JAPAN, 36(9) (9), 177 - 181, Japanese

  [Invited]

  Introduction scientific journal


• Preparation of Cylindrical Polystyrene Particles and their Adsorption Behavior

  MINAMI Hideto, LI Wei, SUZUKI Toyoko

  A facile and novel approach of preparing monodisperse polystyrene (PS) particles having a "cylindrical" shape was discovered. The proposed synthetic method involved dispersion polymerization of the spherical PS particles stirred in a polyvinylpyrrolidone (PVP) aqueous solution for several hours using a magnetic stirrer. In the presence of PVP, the spherical PS particles deformed into cylindrical shapes following stirring; however, the particles did not deform in the absence of PVP. The deformation rate of the particles was affected by the molecular weight of dissolved PVP. This stirring method is not only highly efficient and provides high yield, but is also applicable to other materials such as polymethyl methacrylate (PMMA). Moreover, cylindrical polystyrene particles were applied as a particulate stabilizer to prepare a Pickering emulsion of decane (oil)/water. Unlike the spherical particles that are typically used in Pickering emulsions, the cylindrical particles enhanced the emulsion's stability (up to 1 year). Furthermore, the cylindrical particulate stabilizer enabled a stable emulsion across a wide range of pH. Notably, unique adsorption behavior of the cylindrical particles on an oil droplet was observed, in which the cylindrical particles connected head to head to form a network that acted as a cage around the oil droplet.

  Japan Society of Colour Material, Oct. 2019, Journal of the Japan Society of Colour Material, 92(10) (10), 299 - 303, Japanese

  [Invited]

  Introduction scientific journal


• Recent Trends on Synthesis of Functional Polymer Particles

  OMURA Taro, MINAMI Hideto

  Aug. 2019, HIGH POLYMERS, JAPAN, 68(8) (8), 422 - 426, Japanese

  [Invited]

  Introduction scientific journal


• 高分子化イオン液体(ポリイオン液体)微粒子の合成

  TOKUDA Masayoshi, MINAMI Hideto

  Ionic liquids that are mostly composed of organic ions are found as molten salts at room temperature and have been the subject of research in various fields due to their low vapor pressures, high thermal stability, and non-flammability. Ionic liquids also exhibit characteristics, such as ionic conductivity and CO₂ solubility, which are expected to be useful for the development of functional materials. Poly(ionic liquid)s (PILs) are polymer materials that combine the mechanical stability and processability of polymeric materials with the unique properties of ionic liquids. PILs are prepared by the polymerization of ionic liquid containing vinyl and (meth)acrylate groups on the cationic or anionic components of the liquid. They can have various applications such as sorbents of CO₂, polymer electrolytes, and microwave absorbing materials. In this review, we introduce mainly our work on the preparation of PILs as particle state.

  Japan Society of Colour Material, 2016, 色材協会誌, 89(7) (7), 219 - 224, Japanese

  [Invited]

  Introduction scientific journal


• Preparation of Functional Polymer Particles by Controlled Living Radical Polymerizations

  南 秀人

  シーエムシー出版, Nov. 2015, ファインケミカル : 調査・資料・報道・抄録, 44(11) (11), 47 - 54, Japanese


• 低分子ゲル・高分子ゲル複合型新規ヘテロダブルネットワークイオン液体ゲルの開発

  片岡稔和, 石岡佑美, 南秀人, 水畑穣, 丸山達生

  2015, 高分子学会予稿集(CD-ROM), 64(2) (2)


• 高導電性を有するダブルネットワークイオン液体ゲルの開発

  片岡稔和, 石岡佑美, 南秀人, 水畑穣, 丸山達生

  2015, 化学工学会秋季大会研究発表講演要旨集(CD-ROM), 47th


• 低分子ゲル・高分子ゲル共存型新規ヘテロダブルネットワークイオン液体ゲルの開発

  片岡稔和, 石岡佑美, 南秀人, 水畑穣, 丸山達生

  2014, 化学工学会秋季大会研究発表講演要旨集(CD-ROM), 46th


• 低分子ゲル・高分子ゲル混在型新規ヘテロダブルネットワークイオノゲルの調製

  片岡稔和, 石岡佑美, 南秀人, 水畑穣, 丸山達生

  2014, 高分子学会予稿集(CD-ROM), 63(2) (2)


• 分散安定剤の水素結合を利用した高分子粒子の高次構造化

  MINAMI Hideto

  2014, C&I Commun, 39(4) (4), Japanese

  [Invited]

  Introduction scientific journal


• 機能性微粒子材料の創成

  MINAMI Hideto

  日本塗装技術協会, 2014, 塗装工学, 49(6) (6), 207 - 215, Japanese

  [Invited]

  Introduction scientific journal


• 階層構造制御による高分子微粒子の機能化

  MINAMI Hideto, SUZUKI Toyoko

  2014, PHARM TECH JAPAN, 30(14) (14), 133 - 138, Japanese

  [Invited]

  Introduction scientific journal


• KINOSHITA Keigo, MINAMI Hideto

  MINAMI Hideto

  The Adhesion Society of Japan, May 2013, Journal of The Adhesion Society of Japan, 49(5) (5), 148 - 156, Japanese

  [Invited]

  Introduction scientific journal


• 超臨界二酸化炭素流体中での高分子(微粒子)の合成

  OKUBO Masayoshi, MINAMI Hideto, SUZUKI Toyoko

  日本接着学会, Jul. 2010, 日本接着学会誌, Vol 46, ,No.8, pp. 276-281(7) (7), 276 - 281, Japanese

  Report scientific journal


• Controlled / Living Radical Polymerization in Aqueous Dispersed Systems

  MINAMI Hideto, PER B. Zetterlund, OKUBO Masayoshi

  Feb. 2010, HIGH POLYMERS, JAPAN, 58(2) (2), 78 - 81, Japanese

  [Invited]


• Preparation of polymer particles in ionic liquid

  MINAMI Hideto

  電気化学会溶融塩委員会, 2009, Molten Salts, 52(1) (1), 22 - 28, Japanese

  [Invited]


• Atom transfer radical polymerization of iso-butyl methacrylate in microemulsion with cationic and non-ionic emulsifiers (vol 28, pg 2354, 2007)

  Yasuyuki Kagawa, Masahiro Kawasaki, Per B. Zetterlund, Hideto Minami, Masayoshi Okubo

  WILEY-V C H VERLAG GMBH, Feb. 2008, MACROMOLECULAR RAPID COMMUNICATIONS, 29(3) (3), 264 - 264, English

  Others


• 神戸大学 : 大学院自然科学研究科分子物質科学専攻・工学部応用化学科

  大久保 政芳, MINAMI HIDETO

  色材協会, May 2005, 色材協會誌, 78(5) (5), 240 - 242, Japanese

  Others


• 水媒体ナノリアクター中でのリビングラジカル重合による精密高分子合成

  MINAMI HIDETO, 大久保 政芳

  日本接着学会, Oct. 2004, 日本接着学会誌 = Journal of the Adhesion Society of Japan, 40(11) (11), 530 - 532, Japanese

  Introduction scientific journal


• Morphology structure of polystyrene/poly(methyl methacrylate) composite particles having a dent

  OKUBO Masayoshi, SAITO Naohiko, TAKEKOH Ryu, MINAMI Hideto

  26 Jun. 2003, 日本接着学会年次大会講演要旨集, 41, 55 - 56, Japanese


• 神戸大学大学院自然科学研究科分子集合科学専攻・工学部応用化学科高分子コロイド研究室(大久保正芳研究室)

  MINAMI HIDETO

  Aug. 2002, 日本接着学会誌 = Journal of the Adhesion Society of Japan, 38(8) (8), 319 - 320, Japanese

  Others


• Production of Poly(acrylonitrile) Particles by Precipitation Polymerization of Acrylonitrile in Supercritical Carbon Dioxide

  OKUBO Masayoshi, FUJII Syuji, MAENAKA Hiroshi, TANAKA Hiroyuki, MINAMI Hideto

  05 Jul. 2001, 日本接着学会年次大会講演要旨集, 39, 41 - 42, Japanese


• Preparation of anomalous particles by post-treatment using various polymers

  OKUBO Masayoshi, SEBKI Salim, KONISHI Yuichiro, MINAMI Hideto

  22 Jun. 2000, 日本接着学会年次大会講演要旨集, 38, 101 - 102, Japanese


• モノマー滴からポリマー粒子へ-ミニエマルション重合系における粒径保持〜

  MINAMI HIDETO

  Apr. 2000, 化学と工業 = Chemistry and chemical industry, 53(4) (4), 517 - 517, Japanese

  Introduction scientific journal


• Monomer Adsorption on the Surface of Micron-sized Monodispersed, Tightly Cross-linked Polymer Seed Particles Utilizing the Dynamic Swelling Method

  OKUBO Masayoshi, YAMASHITA Tsuyoshi, MINAMI Hideto, KONISHI Yuichiro

  25 Jun. 1998, 日本接着学会年次大会講演要旨集, 36, 219 - 220, Japanese

• 分散・凝集の応用 濃厚分散系の技術

  Hideto Minami

  Joint work, 第2部第20章「コロイド粒子の１～２次元配列・凝集」, 近代科学社Digital, Apr. 2024, ISBN: 476496077X


• ラジカル重合ハンドブック

  南 秀人, 鈴木登代子

  Joint work, 「不均一反応場におけるリビングラジカル重合」「総説」「不均一系の重合の制御―乳化・分散・懸濁重合」「微粒子の制御―均一微粒子の合成」「ポリマーコロイド」, エヌ・ティー・エス, Dec. 2023, Japanese, ISBN: 9784860438715


• 高分子材料の事典

  南 秀人

  Contributor, 3章7節「微粒子」, 朝倉書店, Nov. 2022, Japanese, ISBN: 9784254252729


• 【水】と機能性ポリマーに関する材料設計,最新応用

  柳澤惠広, 平 敏彰, 南 秀人

  Joint work, 「天然由来の界面活性剤サーファクチンの応用展望について」第３章 第４節, 技術情報協会, Jul. 2021, Japanese, ISBN: 9784861048531


• 「刺激応答性高分子ハンドブック」第3章第６節 不均一重合による刺激応答性高分子微粒子の設計

  MINAMI Hideto

  Single work, 株式会社エヌ・ティー・エス, Dec. 2018, Japanese, 概要, ISBN: 9784860435356

  Scholarly book


• 「リビングラジカル重合―機能性高分子の合成と応用展開―」第ＩＩ編第6章リビングラジカル重合を用いた機能性高分子微粒子の合成

  MINAMI Hideto

  Single work, 株式会社シーエムシー, Aug. 2018, Japanese, 概要, ISBN: 9784781313368

  Scholarly book


• 「第4版現代界面コロイド化学の基礎」第4章高分子微粒子

  MINAMI Hideto

  Single work, 丸善出版, Apr. 2018, Japanese, 概要, ISBN: 9784621302910

  Scholarly book


• ファインケミカル特集：リビングラジカル重合の最新動向「リビングラジカル重合を用いた機能性高分子微粒子の合成」

  MINAMI Hideto

  Single work, 株式会社シーエムシー, Nov. 2015, Japanese, 概要, ISBN: 9784861045462

  Scholarly book


• エマルションの特性評価と新製品開発、品質管理への活用

  MINAMI Hideto, SUZUKI Toyoko

  Joint work, 株式会社技術情報協会, Oct. 2014, Japanese, ISBN: 9784861045462

  Scholarly book


• Emulsion Polymerization and Functional Polymeric Microspheres –Science and Technology- Chapter 6“Syntheses of Poly(acrylic acid) and Poly(acrylic acid)/Polystyrene Composite Particles in an Ionic Liquid”

  MINAMI HIDETO, KINOSHITA KEIGO, KIMURA AKIRA, OKUBO MASAYOSHI

  Joint work, Yonsei University Press, Oct. 2013, English, ISBN: 9788968500442

  Scholarly book


• Emulsion Polymerization and Functional Polymeric Microspheres –Science and Technology- Chapter 4“Glass transition temperatures of polymer particles with incorporated nonionic emulsifier prepared by emulsion polymerizations in emulsion and dry states”

  CHAIYASAT Amorn, CHAIYASAT Preyapoon, SUZUKI TOYOKO, MINAMI HIDETO, OKUBO Masayoshi

  Joint work, Yonsei University Press, Oct. 2013, English, ISBN: 9788968500442

  Scholarly book


• 「イオン伝導体の材料技術と測定方法」第2章 第2節「イオン液体におけるカプセル化・高機能ポリマー微粒子化」

  MINAMI Hideto

  Single work, 株式会社エヌ・ティー・エス, Dec. 2011, Japanese

  Scholarly book


• 「新訂版ラジカル重合ハンドブック」第2編 第1章 第7節「不均一系反応場におけるリビングラジカル重合」

  MINAMI Hideto, OKUBO Masayoshi

  Joint work, 株式会社エヌ・ティー・エス, Sep. 2010, Japanese

  Scholarly book

• 高分子微粒子の構造設計とそれに基づくコロイド構造体の形成

  南 秀人

  広島ゴム技術員会2月例会, Feb. 2020, Japanese, 広島ゴム技術員会, 広島, Domestic conference

  [Invited]

  Invited oral presentation


• 高分子微粒子の構造制御による機能化

  南 秀人

  重合工学レクチャーシリーズNo.7, Jan. 2020, Japanese, 近畿化学協会重合工学部会, 大阪, Japan, Domestic conference

  [Invited]

  Invited oral presentation


• Preparation of Polystyrene Having a “Cylindrical” Shape

  MINAMI Hideto

  The 16th Pacific Polymer Conference (16PPC), Dec. 2019, English, Pacific Polymer Federation, Singapore, Singapore, International conference

  [Invited]

  Invited oral presentation


• Morphology Control of Cellulose Particles

  OMURA Taro, SUZUKI Toyoko, MINAMI Hideto

  2nd G'L'owing Polymer Symposium in KANTO, Nov. 2019, English, 高分子学会関東支部, 東京, Japan, International conference

  Oral presentation


• 高分子微粒子のモルフォロジー制御とその機能

  MINAMI Hideto

  第28回ポリマー材料フォーラム, Nov. 2019, Japanese, 高分子学会, 名古屋, Japan, Domestic conference

  [Invited]

  Invited oral presentation


• Synthesis of Poly(ionic liquid) and Application to an Adhesive

  TSUKIJI Junichi, NAKANO Takanori, HAYASHI Chihiro, SUZUKI Toyoko, MINAMI Hideto

  第28回ポリマー材料フォーラム, Nov. 2019, Japanese, 高分子学会, 名古屋, Domestic conference

  Poster presentation


• Preparation of Cylindrical Polystyrene Particles and Its Adsorption Behavior

  MINAMI Hideto

  37th Australasian Polymer Symposium (37APS), Nov. 2019, English, Royal Australian Chemical Institute, Sunshine Coast,, Australia, International conference

  [Invited]

  Invited oral presentation


• Preparation of Cylindrical PS/P(S-MMA) Janus Particles by Stirring Method

  ONISHI Miku, TSUJITA Daiki, LI Wei, SUZUKI Toyoko, MINAMI Hideto

  2019年度色材研究発表会, Oct. 2019, Japanese, 色材協会, 東京, Japan, Domestic conference

  Poster presentation


• Two-Dimensional Colloidal Structure Utilizing Disc-like Particles

  FUJII Mana, TSUKIJI Junichi, NAKANO Takanori, SUZUKI Toyoko, MINAMI Hideto

  2019年度色材研究発表会, Oct. 2019, Japanese, 色材協会, 東京, Japan, Domestic conference

  Poster presentation


• Influence of Precipitation Solvent on Morphology of Cellulose Particles by Solvent Releasing Method

  OMURA Taro, SUZUKI Toyoko, MINAMI Hideto

  第68回高分子学会討論会, Sep. 2019, Japanese, 高分子学会, 福井, Domestic conference

  Poster presentation


• Preparation of silicone/polymer composite particles

  MUKAI Ken, FUJII Yuki, YAMANE Mitsuyoshi, SUZUKI Toyoko, MINAMI Hideto

  第68回高分子学会討論会, Sep. 2019, Japanese, 高分子学会, 福井, Japan, Domestic conference

  Poster presentation


• Morphology Control of Janus Particles and Colloidal Structure Utilizing Hydrogen Bonding Interactions

  TSUJITA Daiki, MIZUHARA Syuichiro, OMURA Taro, SUZUKI Toyoko, MINAMI Hideto

  第68回高分子学会討論会, Sep. 2019, Japanese, 高分子学会, 福井, Japan, Domestic conference

  Oral presentation


• Preparation of Polymer Particles Containing Reduced Graphene Oxide Using Block Copolymer

  YAMANE Mitsuyoshi, TOKUDA Masayoshi, ZETTERLUND Per B, MINAMI Hideto

  第68回高分子学会討論会, Sep. 2019, Japanese, 高分子学会, 福井, Japan, Domestic conference, Co-authored internationally

  [Invited]

  Invited oral presentation


• 高分子(複合)微粒子の構造制御とその機能化

  南 秀人

  2019年度膜工学サロン, Sep. 2019, Japanese, 先端膜工学研究推進機構, 神戸, Domestic conference

  [Invited]

  Invited oral presentation


• Preparation of Cylindrical Janus Particles by Stirring Method

  ONISHI Miku, TSUJITA Daiki, LI Wei, MINAMI Hideto

  第65回高分子研究発表会（神戸）, Jul. 2019, Japanese, 高分子学会関西支部, 神戸, Domestic conference

  Oral presentation


• Two-Dimensional Colloidal Structure Using Disc-like Particles

  FUJII Mana, TSUKIJI Junichi, NAKANO Takanori, MINAMI Hideto

  第65回高分子研究発表会（神戸）, Jul. 2019, Japanese, 高分子学会関西支部, 神戸, Japan, Domestic conference

  Oral presentation


• 2官能シリコン化合物を用いた単分散微粒子の合成および粒径制御

  TAKEUCHI Yuya, MUKAI Ken, FUJII Yuki, OKUBO Yohei, FUJITA Keisuke, MINAMI Hideto

  第65回高分子研究発表会（神戸）, Jul. 2019, Japanese, 高分子学会関西支部, 神戸, Japan, Domestic conference

  Oral presentation


• Effect of Kind of Precipitation Solvent on Morphology of Cellulose Particles

  OMURA Taro, SUZUKI Toyoko, MINAMI Hideto

  The International Polymer Colloid Group (IPCG) Conference 2019, Jun. 2019, English, International Polymer Colloids Group, Singapore, Singapore, International conference

  Poster presentation


• Preparation of microcapsules with hemisphere silica particles

  SUZUKI Toyoko, ITO Mayu, MORI Atsunori, MINAMI Hideto

  The International Polymer Colloid Group (IPCG) Conference 2019, Jun. 2019, English, International Polymer Colloids Group, Singapore, Singapore, International conference

  Poster presentation


• Preparation of Cylindrical Shape Particles

  LI Wei, SUZUKI Toyoko, MINAMI Hideto

  The International Polymer Colloid Group (IPCG) Conference 2019, Jun. 2019, English, International Polymer Colloids Group, Singapore, Singapore, International conference

  Poster presentation


• Synthesis of Poly(ionic liquid) Particles and Application to a Metal-plastic Adhesive

  TSUKIJI Junichi, NAKANO Takanori, HAYASHI Chihiro, SUZUKI Toyoko, MINAMI Hideto

  The International Polymer Colloid Group (IPCG) Conference 2019, Jun. 2019, English, International Polymer Colloids Group, Singapore, Singapore, International conference

  Poster presentation


• Preparation of silicone/polymer composite particles with various morphologies

  MUKAI Ken, FUJII Yuki, YAMANE Mitsuyoshi, SUZUKI Toyoko, MINAMI Hideto

  The International Polymer Colloid Group (IPCG) Conference 2019, Jun. 2019, English, International Polymer Colloids Group, Singapore, Singapore, International conference

  Poster presentation


• 高分子合成と反応(1) -高分子の生成反応，合成法-

  南 秀人

  第54回高分子の基礎と応用講座, Jun. 2019, Japanese, 高分子学会関西支部, 大阪, Japan

  [Invited]

  Invited oral presentation


• Preparation of Building Block Particles Having Different Stabilizer and Colloidal Structure

  TSUJITA Daiki, MIZUHARA Syuichiro, OMURA Taro, MINAMI Hideto

  第57回日本接着学会年次大会, Jun. 2019, Japanese, 日本接着学会, 福岡, Japan, Domestic conference

  Poster presentation


• Synthesis of monodisperse particles using bi-functional silicon compound

  TAKEUCHI Yuya, MUKAI Ken, FUJII Yuki, OKUBO Yohei, FUJITA Keisuke, MINAMI Hideto

  第57回日本接着学会年次大会, Jun. 2019, Japanese, 日本接着学会, 福岡, Japan, Domestic conference

  Poster presentation


• 高分子微粒子の構造制御および微粒子構造体

  南 秀人

  第162回ラドテック研究講演会, Jun. 2019, Japanese, ラドテック研究会, 大阪, Japan, Domestic conference

  [Invited]

  Invited oral presentation


• Formation Mechanism of Cellulose Particles Having Hollow Structure

  OMURA Taro, SUZUKI Toyoko, MINAMI Hideto

  第68回高分子学会年次大会, May 2019, English, 高分子学会, 大阪, Domestic conference

  Oral presentation


• Preparation of silicone/polymer composite particles by seeded polymerization

  MUKAI Ken, FUJII Yuki, YAMANE Mitsuyoshi, MINAMI Hideto

  第68回高分子学会年次大会, May 2019, Japanese, 高分子学会, 大阪, Domestic conference

  Oral presentation


• Synthesis of Poly(ionic liquid) and Application to an Adhesive

  TSUKIJI Junichi, NAKANO Takanori, HAYASHI Chihiro, MINAMI Hideto

  第68回高分子学会年次大会, May 2019, Japanese, 高分子学会, 大阪, Domestic conference

  Poster presentation


• Morphology Control of Building Block Particles and Colloidal Structure

  TSUJITA Daiki, MIZUHARA Syuichiro, OMURA Taro, MINAMI Hideto

  第68回高分子学会年次大会, May 2019, Japanese, 高分子学会, 大阪, Japan, Domestic conference

  Poster presentation


• Colloidal Structure of Disc-like Particles

  FUJII Mana, TSUKIJI Junichi, NAKANO Takanori, MINAMI Hideto

  第68回高分子学会年次大会, May 2019, Japanese, 高分子学会, 大阪, Japan, Domestic conference

  Poster presentation


• Preparation of Janus Particles Having a Cylindrical Shape by Stirring Method

  ONISHI Miku, TSUJITA Daiki, LI Wei, MINAMI Hideto

  第68回高分子学会年次大会, May 2019, Japanese, 高分子学会, 大阪, Japan, Domestic conference

  Poster presentation


• Morphology Control and Functionalization of Polymer Particles

  Hideto Minami

  第68回高分子学会年次大会, May 2019, Japanese, 高分子学会, 大阪, Japan, Domestic conference

  [Invited]

  Invited oral presentation


• 銀ナノ粒子を含有したセルロース粒子の作製

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  第99回日本化学会春季年会, Mar. 2019, Japanese, 日本化学会, 神戸, Domestic conference

  Oral presentation


• ソフトマター“高分子微粒子”の構造設計とその機能

  MINAMI Hideto

  高分子学会「Webinar2018」, Feb. 2019, Japanese, 高分子学会, 東京, Domestic conference

  Public discourse


• Preparation of Silicone Particles by Click Reaction and Silicone/Polymer Composite Particles by Seeded Polymerization

  MUKAI Ken, FUJII Yuki, YAMANE Mitsuyoshi, MINAMI Hideto

  2th SPSJ International Polymer Conference (IPC2018), Dec. 2018, English, 高分子学会, 広島, International conference

  Poster presentation


• Preparation of Functionalized Cellulose Particles

  FUJII Yuki, IMAGAWA Kaori, OMURA Taro, SUZUKI Toyoko, MINAMI Hideto

  2th SPSJ International Polymer Conference (IPC2018), Dec. 2018, English, 高分子学会, 広島, International conference

  Poster presentation


• Morphology Control of Cellulose Particles Having Porous Structure

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  1st G'L'owing Polymer Symposium in KANTO, Dec. 2018, English, 高分子学会関東支部, 東京, International conference

  Oral presentation


• A Facile Preparation of Cylindrical Polymer Particle and Its Absorption at Interface

  LI Wei, SUZUKI Toyoko, MINAMI Hideto

  1st G'L'owing Polymer Symposium in KANTO, Dec. 2018, English, 高分子学会関東支部, 東京, International conference

  Oral presentation


• A Facile Preparation of Cylindrical Particles and Its Application

  LI Wei, SUZUKI Toyoko, MINAMI Hideto

  2th SPSJ International Polymer Conference (IPC2018), Dec. 2018, English, 高分子学会, 広島, International conference

  Poster presentation


• 沈殿重合による単分散なポリアクリル酸微粒子の作製

  NAKANO Takanori, SAITO Naohiko, MINAMI Hideto

  第20回高分子ミクロスフェア討論会, Nov. 2018, Japanese, 高分子ミクロスフェア研究会, 岡山, Domestic conference

  Oral presentation


• 高分子微粒子の構造設計およびコロイド構造体

  MINAMI Hideto

  第21回ＮＩＣガーデンレクチャー, Nov. 2018, Japanese, 日華化学, 福井, Domestic conference

  Invited oral presentation


• 高分子微粒子の基礎

  MINAMI Hideto

  基礎セミナー「接着技術に必要な基礎を学ぶ」, Nov. 2018, Japanese, 日本接着学会関西支部, 大阪, Domestic conference

  Public discourse


• シリンダー状高分子粒子の合成とその応用

  LI Wei, SUZUKI Toyoko, MINAMI Hideto

  第20回高分子ミクロスフェア討論会, Nov. 2018, Japanese, 高分子ミクロスフェア研究会, 岡山, Domestic conference

  Oral presentation


• イオン液体を利用したセルロース微粒子の形態制御

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  第20回高分子ミクロスフェア討論会, Nov. 2018, Japanese, 高分子ミクロスフェア研究会, 岡山, Domestic conference

  Oral presentation


• TEMPO酸化を利用した機能性セルロース粒子の作製

  FUJII Yuki, IMAGAWA Kaori, OMURA Taro, SUZUKI Toyoko, MINAMI Hideto

  第27回ポリマー材料フォーラム, Nov. 2018, Japanese, 高分子学会, 東京, Domestic conference

  Poster presentation


• Preparation of functional polymer particles and colloidal building blocks

  MINAMI Hideto

  Joint Lecture Series between Jagielonian University and Kobe University, Nov. 2018, English, Jagielonian University, Cracow, Poland, International conference

  [Invited]

  Invited oral presentation


• rGO Nanocomposite Films via Miniemulsion Polymerization

  FADIL Yasemin, AFARWAL Vipul, LYER Swaminathan, JASINSKI Florent, THICKETT C. Stuart, MINAMI Hideto, ZETTERLUND B. Per

  International Conference on Emerging Advanced Nanomaterials (ICEAN) 2018, Nov. 2018, English, Global Innovative Centre for ADVANCED NANOMATERIALS, Newcastle, Australia, International conference

  Oral presentation


• 水素結合を利用した粒子構造体に向けたヤヌス粒子のモルフォロジー制御

  TSUJITA Daiki, MIZUHARA Syuichiro, OMURA Taro, MINAMI Hideto

  2018年度色材研究発表会, Oct. 2018, Japanese, 色材協会, 大阪, Domestic conference

  Poster presentation


• Thiol-ene反応によるシリコーン粒子及びシリコーン/汎用ポリマー複合粒子の作製

  MUKAI Ken, FUJII Yuki, YAMANE Mitsuyoshi, MINAMI Hideto

  2018年度色材研究発表会, Oct. 2018, Japanese, 色材協会, 大阪, Domestic conference

  Poster presentation


• 粒子構造体形成に向けたヤヌス粒子のモルフォロジー制御

  TSUJITA Daiki, MIZUHARA Syuichiro, OMURA Taro, MINAMI Hideto

  第67回高分子学会討論会, Sep. 2018, Japanese, 高分子学会, 北海道, Domestic conference

  Poster presentation


• 中空構造を有するセルロース微粒子のモルフォロジー制御

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  第67回高分子学会討論会, Sep. 2018, Japanese, 高分子学会, 北海道, Domestic conference

  Poster presentation


• 単中空構造を有するセルロース微粒子の合成

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  第69回コロイドおよび界面化学討論会, Sep. 2018, Japanese, 日本化学会コロイドおよび界面化学部会, 筑波, Domestic conference

  Poster presentation


• クリック反応を用いたシリコーン粒子の合成とシリコーン/ポリベンジルメタクリレート複合粒子の作製

  MUKAI Ken, FUJII Yuki, YAMANE Mitsuyoshi, MINAMI Hideto

  第67回高分子学会討論会, Sep. 2018, Japanese, 高分子学会, 北海道, Domestic conference

  Poster presentation


• イオン液体ポリマーを用いたフッ素樹脂/金属の接着

  TSUKIJI Junichi, NAKANO Takanori, HAYASHI Chihiro, MINAMI Hideto

  第67回高分子学会討論会, Sep. 2018, Japanese, 高分子学会, 北海道, Domestic conference

  Poster presentation


• ヤヌス粒子のモルフォロジー制御とその粒子構造体

  TSUJITA Daiki, MIZUHARA Syuichiro, OMURA Taro, MINAMI Hideto

  第64回高分子研究発表会（神戸）, Jul. 2018, Japanese, 高分子学会関西支部, 神戸, Domestic conference

  Oral presentation


• イオン液体ポリマーを利用した異種材料接着への応用

  TSUKIJI Junichi, NAKANO Takanori, HAYASHI Chihiro, MINAMI Hideto

  第64回高分子研究発表会（神戸）, Jul. 2018, Japanese, 高分子学会関西支部, 神戸, Domestic conference

  Oral presentation


• Thiol-ene反応を用いたシリコーン粒子の作製

  MUKAI Ken, FUJII Yuki, YAMANE Mitsuyoshi, MINAMI Hideto

  第64回高分子研究発表会（神戸）, Jul. 2018, Japanese, 高分子学会関西支部, 神戸, Domestic conference

  Oral presentation


• Preparation of Poly(ionic liquid) Particles Having Cationic Exchange Property by Dispersion Polymerization

  NAKANO Takanori, YAMANE Mitsuyoshi, KUROZUKA Aya, MINAMI Hideto

  IUPAC MACRO2018, Jul. 2018, English, IUPAC, Cairns, Australia, International conference

  Poster presentation


• Preparation of Janus particles composed of hydrophobic and hydrophilic polymer

  MINAMI Hideto, OUCHI Takuto, NAKAMURA Ryuma, SUZUKI Toyoko

  IUPAC MACRO2018, Jul. 2018, English, IUPAC, Cairns, Australia, International conference

  Oral presentation


• Application of Spongy Cellulose Particles as Microcapsule

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  IUPAC MACRO2018, Jul. 2018, English, IUPAC, Cairns, Australia, International conference

  Poster presentation


• A Facile Method for Preparation of Monodisperse Cylindrical Polystyrene Particles

  LI Wei, SUZUKI Toyoko, MINAMI Hideto

  IUPAC MACRO2018, Jul. 2018, English, IUPAC, Cairns, Australia, International conference

  Poster presentation


• 高分子合成と反応（1）高分子の構造と生成反応，合成法の特徴

  MINAMI Hideto

  第53回高分子の基礎と応用講座, Jun. 2018, Japanese, 高分子学会関西支部, 大阪, Domestic conference

  Public discourse


• イオン液体ポリマー微粒子の合成とカチオン交換による粒子の機能化

  NAKANO Takanori, YAMANE Mitsuyoshi, KUROZUKA Aya, MINAMI Hideto

  第56回日本接着学会年次大会, Jun. 2018, Japanese, 日本接着学会, 東京, Domestic conference

  Poster presentation


• イオン液体ポリマーの接着剤への応用

  TSUKIJI Junichi, NAKANO Takanori, HAYASHI Chihiro, MINAMI Hideto

  第56回日本接着学会年次大会, Jun. 2018, Japanese, 日本接着学会, 東京, Domestic conference

  Poster presentation


• 棒状ポリスチレン粒子の作製とその界面吸着挙動

  LI Wei, SUZUKI Toyoko, MINAMI Hideto

  第67回高分子学会年次大会, May 2018, English, 高分子学会, 名古屋, Domestic conference

  Oral presentation


• カチオン交換性イオン液体ポリマー微粒子の合成

  NAKANO Takanori, YAMANE Mitsuyoshi, KUROZUKA Aya, MINAMI Hideto

  第67回高分子学会年次大会, May 2018, Japanese, 高分子学会, 名古屋, Domestic conference

  Poster presentation


• TEMPO酸化を利用した機能性セルロース粒子の作製

  FUJII Yuki, IMAGAWA Kaori, OMURA Taro, SUZUKI Toyoko, MINAMI Hideto

  第67回高分子学会年次大会, May 2018, Japanese, 高分子学会, 名古屋, Domestic conference

  Poster presentation


• Preparation of Polymer Particles Containing Reduced Graphene Oxide Stabilized by Poly(ionic liquid)

  MINAMI Hideto, TOKUDA Masayoshi, YAMANE Mitsuyoshi, THICKETT C. Stuart, ZETTERUND B. Per

  The 6th Asian Symposium on Emulsion Polymerization and Functional Polymeric Microspheres, Mar. 2018, English, ASEPFPM, 福井, International conference

  [Invited]

  Invited oral presentation


• Application of Spongy Cellulose Particles to Encapsulation

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  The 6th Asian Symposium on Emulsion Polymerization and Functional Polymeric Microspheres, Mar. 2018, English, ASEPFPM, 福井, International conference

  Poster presentation


• A Facile Method for Preparation of Monodisperse Cylindrical Polystyrene Particles

  LI Wei, SUZUKI Toyoko, MINAMI Hideto

  The 6th Asian Symposium on Emulsion Polymerization and Functional Polymeric Microspheres, Mar. 2018, English, ASEPFPM, 福井, International conference

  Poster presentation


• Formation of Colloidal Chain Using Hydrogen-bonding Interaction

  MINAMI Hideto

  Energy Materials Nanotechnology Meeting, Dec. 2017, English, Energy Materials Nanotechnology Meeting, Orlando, USA, International conference

  [Invited]

  Invited oral presentation


• Colloidal structure using hydrogen bonding interaction between colloidal stabilizer

  MINAMI Hideto

  First Materials Research Society of Thailand International Conference, Nov. 2017, English, Materials Research Society of Thailand, Chiang Mai，Thailand, International conference

  Keynote oral presentation


• 銀ナノ粒子を含有したセルロース粒子の作製

  FUJII Yuki, OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  2017年度色材研究発表会, Oct. 2017, Japanese, 色材協会, 東京, Domestic conference

  Poster presentation


• イオン液体ポリマーを分散剤とした還元型酸化グラフェン含有汎用性高分子微粒子の合成

  YAMANE Mitsuyoshi, TOKUDA Masayoshi, THICKETT C. Stuart, ZETTERUND B. Per, MINAMI Hideto

  2017年度色材研究発表会, Oct. 2017, Japanese, 色材協会, 東京, Domestic conference

  Poster presentation


• Dispersion polymerization of L-lactide utilizing ionic liquids as reaction medium

  FAHMIATI Sri, MINAMI Hideto, HARYONO Agus, ADILINA Indri B

  The 3rd International Symposium on Applied Chemistry (ISAC 2017), Oct. 2017, English, Indonesian Institute of Sciences, Jakarta, Indonesia, International conference

  Poster presentation


• 新規な単分散棒状粒子の作製

  LI Wei, SUZUKI Toyoko, MINAMI Hideto

  第66回高分子学会討論会, Sep. 2017, Japanese, 高分子学会, 愛媛, Domestic conference

  Poster presentation


• 塩添加により開口部を形成するカプセル粒子の作製

  MIZUHARA Syuichiro, OUCHI Takuto, SUZUKI Toyoko, MINAMI Hideto

  第66回高分子学会討論会, Sep. 2017, Japanese, 高分子学会, 愛媛, Domestic conference

  Oral presentation


• セルロース/銀複合粒子の作製

  FUJII Yuki, OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  第66回高分子学会討論会, Sep. 2017, Japanese, 高分子学会, 愛媛, Domestic conference

  Poster presentation


• イオン液体ポリマー微粒子の合成とカチオン交換による金属イオンの担持

  NAKANO Takanori, YAMANE Mitsuyoshi, KUROZUKA Aya, MINAMI Hideto

  第66回高分子学会討論会, Sep. 2017, Japanese, 高分子学会, 愛媛, Domestic conference

  Oral presentation


• イオン液体ポリマーを分散剤として用いた還元型酸化グラフェン含有高分子微粒子の合成

  YAMANE Mitsuyoshi, TOKUDA Masayoshi, THICKETT C. Stuart, ZETTERUND B. Per, MINAMI Hideto

  第68回コロイドおよび界面化学討論会, Sep. 2017, Japanese, 日本化学会コロイドおよび界面化学部会, 神戸, Domestic conference

  Poster presentation


• アニオン交換を利用したポリイオン液体中空粒子の機能化

  HAYASHI Chihiro, NAKAMURA Ryuma, SUZUKI Toyoko, MINAMI Hideto

  第66回高分子学会討論会, Sep. 2017, Japanese, 高分子学会, 愛媛, Domestic conference

  Oral presentation


• TEMPO酸化を利用したセルロース/銀複合粒子の作製

  FUJII Yuki, OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  第68回コロイドおよび界面化学討論会, Sep. 2017, Japanese, 日本化学会コロイドおよび界面化学部会, 神戸, Domestic conference

  Poster presentation


• 金属酸化物を内包したポリイオン液体中空粒子の合成

  HAYASHI Chihiro, NAKAMURA Ryuma, SUZUKI Toyoko, MINAMI Hideto

  第63回高分子研究発表会（神戸）, Jul. 2017, Japanese, 高分子学会関西支部, 神戸, Domestic conference

  Oral presentation


• アニオン部を主鎖とするイオン液体ポリマー微粒子の合成

  NAKANO Takanori, YAMANE Mitsuyoshi, KUROZUKA Aya, MINAMI Hideto

  第63回高分子研究発表会（神戸）, Jul. 2017, Japanese, 高分子学会関西支部, 神戸, Domestic conference

  Oral presentation


• TEMPO酸化を利用したセルロース粒子の機能化

  FUJII Yuki, OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  第63回高分子研究発表会（神戸）, Jul. 2017, Japanese, 高分子学会関西支部, 神戸, Domestic conference

  Oral presentation


• Synthesis of Polymer Nanoparticles Containing Reduced Graphene Oxide Utilizing Poly(ionic liquid) as Stabilizer

  YAMANE Mitsuyoshi, TOKUDA Masayoshi, THICKETT C. Stuart, ZETTERUND B. Per, MINAMI Hideto

  The International Polymer Colloids Group Conference 2017, Jun. 2017, English, The International Polymer Colloids Group, Arantzazu, Spain, International conference

  Poster presentation


• Preparation of Poly(ionic liquid) Hollow Particles with Switchable Permeability

  MINAMI Hideto, NAKAMURA Ryuma, TOKUDA Masayoshi, SUZUKI Toyoko

  The International Polymer Colloids Group Conference 2017, Jun. 2017, English, The International Polymer Colloids Group, Arantzazu, Spain, International conference

  Poster presentation


• Encapsulatiion Strategy Using Spongy Cellulose Particles

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  The International Polymer Colloids Group Conference 2017, Jun. 2017, English, The International Polymer Colloids Group, Arantzazu, Spain, International conference

  Poster presentation


• A Simple Method to Synthesize Monodisperse Cylindrical Particles by Polystyrene

  LI Wei, SUZUKI Toyoko, MINAMI Hideto

  The International Polymer Colloids Group Conference 2017, Jun. 2017, English, The International Polymer Colloids Group, Arantzazu, Spain, International conference

  Poster presentation


• 単分散な棒状ポリスチレン粒子の作製

  LI Wei, SUZUKI Toyoko, MINAMI Hideto

  第66回高分子学会年次大会, May 2017, Japanese, 高分子学会, 千葉, Domestic conference

  Poster presentation


• 多孔質構造セルロース粒子を利用したカプセル化

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  第66回高分子学会年次大会, May 2017, Japanese, 高分子学会, 千葉, Domestic conference

  Poster presentation


• 塩刺激開口部を有するカプセル粒子の作製

  MIZUHARA Syuichiro, OUCHI Takuto, SUZUKI Toyoko, MINAMI Hideto

  第66回高分子学会年次大会, May 2017, Japanese, 高分子学会, 千葉, Domestic conference

  Poster presentation


• ポリイオン液体中空粒子に対する磁性の付与

  HAYASHI Chihiro, NAKAMURA Ryuma, SUZUKI Toyoko, MINAMI Hideto

  第55回日本接着学会年次大会, May 2017, Japanese, 日本接着学会, 大阪, Domestic conference

  Poster presentation


• RAFT Polymerization in a Miniemulsion System using a Novel Type of Amphiphilic RAFT Agent

  MINAMI Hideto

  CAMD Seminar, Mar. 2017, English, University of New South Wales, Sydney, Australia, International conference

  Invited oral presentation


• Preparation of cellulose/polymer composite beads using ionic liquid

  SUZUKI Toyoko, IHARA Yasuhito, MINAMI Hideto

  5th International Conference on Multifunctional, Hybrid and Nanomaterials, Mar. 2017, English, Elsevier Ltd, Lisbon, Portugal, International conference

  Poster presentation


• Preparation of Functional Polymer Particles

  MINAMI Hideto

  Chemistry Seminar of UTAS, Feb. 2017, English, University of Tasmania, Tasmania, Australia, International conference

  Invited oral presentation


• Synthesis of Polymer Particles Containing Reduced Graphene Oxide Utilizing Poly(ionic liquid) as Stabilizer

  YAMANE Mitsuyoshi, TOKUDA Masayoshi, THICKETT C. Stuart, ZETTERUND B. Per, MINAMI Hideto

  International Polymer Conference 2016, Dec. 2016, English, 高分子学会, 福岡, International conference

  Poster presentation


• Preparation of Silicone Particles via Ring-opening Polymerization of Cyclic Siloxane in Aqueous Medium

  MITSUI Hiroki, IKUBO Satoshi, SUZUKI Toyoko, MINAMI Hideto

  International Polymer Conference 2016, Dec. 2016, English, 高分子学会, 福岡, International conference

  Poster presentation


• Preparation of functional polymer colloid

  MINAMI Hideto

  KCPC seminar, Dec. 2016, English, University of Sydney, Sydney, Australia, International conference

  Invited oral presentation


• Mechanism of Emulsion Polymerization with Bio-Surfactant

  KUROZUKA Aya, ONISHI Shohei, NAGANO Takuto, YAMAGUCHI Takumi, SUZUKI Toyoko, MINAMI Hideto

  International Polymer Conference 2016, Dec. 2016, English, 高分子学会, 福岡, International conference

  Poster presentation


• A Facile Method to Prepare Cylindrical Particles by Polystyrene

  LI Wei, SUZUKI Toyoko, MINAMI Hideto

  International Polymer Conference 2016, Dec. 2016, English, 高分子学会, 福岡, International conference

  Poster presentation


• 微細多孔質構造を有するセルロース粒子の形態制御

  IMAGAWA Kaori, KONO Kyosuke, SUZUKI Toyoko, MINAMI Hideto

  第19回高分子ミクロスフェア討論会, Nov. 2016, Japanese, 高分子ミクロスフェア研究会, 千葉, Domestic conference

  Oral presentation


• 汎用ポリマー／イオン液体ポリマー複合粒子のモルフォロジィ制御

  OUCHI Takuto, NAKAMURA Ryuma, SUZUKI Toyoko, MINAMI Hideto

  第19回高分子ミクロスフェア討論会, Nov. 2016, Japanese, 高分子ミクロスフェア研究会, 千葉, Domestic conference

  Oral presentation


• 生物由来界面活性剤を使用した乳化重合

  KUROZUKA Aya, ONISHI Shohei, NAGANO Takuto, YAMAGUCHI Takumi, SUZUKI Toyoko, MINAMI Hideto

  第19回高分子ミクロスフェア討論会, Nov. 2016, Japanese, 高分子ミクロスフェア研究会, 千葉, Domestic conference

  Oral presentation


• 水媒体不均一系でのシリコーン粒子の作製

  MITSUI Hiroki, IKUBO Satoshi, SUZUKI Toyoko, MINAMI Hideto

  第19回高分子ミクロスフェア討論会, Nov. 2016, Japanese, 高分子ミクロスフェア研究会, 千葉, Domestic conference

  Oral presentation


• カプセル内ゾルゲル反応によるシリカ内包粒子の生成機構

  SUZUKI Toyoko, IKUBO Satoshi, MINAMI Hideto

  第19回高分子ミクロスフェア討論会, Nov. 2016, Japanese, 高分子ミクロスフェア研究会, 千葉, Domestic conference

  Oral presentation


• Preparation of Polymeric Particles Containing Reduced Graphene Oxide by Miniemulsion Polymerization

  MINAMI Hideto

  36th Australasian Polymer Symposium, Nov. 2016, English, The Royal Australian Chemical Institute, Lorne, Australia, International conference

  Keynote oral presentation


• 溶剤吸収放出法を利用したイオン液体ポリマー複合粒子のモルフォロジィ制御

  OUCHI Takuto, SUZUKI Toyoko, MINAMI Hideto

  2016年度色材研究発表会, Oct. 2016, Japanese, 色材協会, 大阪, Domestic conference

  Poster presentation


• 多孔質構造セルロース粒子を用いたカプセル化

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  2016年度色材研究発表会, Oct. 2016, Japanese, 色材協会, 大阪, Domestic conference

  Poster presentation


• ポリイオン液体中空粒子を用いた無機物質の導入

  HAYASHI Chihiro, NAKAMURA Ryuma, SUZUKI Toyoko, MINAMI Hideto

  2016年度色材研究発表会, Oct. 2016, Japanese, 色材協会, 大阪, Domestic conference

  Poster presentation


• 微細多孔質セルロース粒子の形態制御

  IMAGAWA Kaori, KONO Kyosuke, SUZUKI Toyoko, MINAMI Hideto

  第65回高分子討論会, Sep. 2016, Japanese, 高分子学会, 横浜, Domestic conference

  Poster presentation


• 多孔質セルロース粒子を用いたカプセル化

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  第65回高分子討論会, Sep. 2016, Japanese, 高分子学会, 横浜, Domestic conference

  Oral presentation


• 磁性を有するポリイオン液体中空粒子の合成

  HAYASHI Chihiro, NAKAMURA Ryuma, SUZUKI Toyoko, MINAMI Hideto

  第65回高分子討論会, Sep. 2016, Japanese, 高分子学会, 横浜, Domestic conference

  Poster presentation


• ひとつもしくは複数のシリカ粒子を内包したポリマーカプセルのワンポット作製

  SUZUKI Toyoko, IKUBO Satoshi, MINAMI Hideto

  第65回高分子討論会, Sep. 2016, Japanese, 高分子学会, 横浜, Domestic conference

  Invited oral presentation


• イオン液体ポリマーを分散剤として用いた還元型酸化グラフェン含有汎用性高分子微粒子の合成

  YAMANE Mitsuyoshi, TOKUDA Masayoshi, THICKETT C. Stuart, ZETTERUND B. Per, MINAMI Hideto

  第65回高分子討論会, Sep. 2016, Japanese, 高分子学会, 横浜, Domestic conference

  Oral presentation


• シリカ粒子内包ポリマーカプセルの生成機構

  SUZUKI Toyoko, IKUBO Satoshi, MINAMI Hideto

  第14回ゾルゲル学会討論会, Aug. 2016, Japanese, ゾルゲル学会, 東京, Domestic conference

  Poster presentation


• 微細多孔質構造セルロース粒子を利用したカプセル化

  OMURA Taro, IMAGAWA Kaori, SUZUKI Toyoko, MINAMI Hideto

  第62回高分子研究発表会（神戸）, Jul. 2016, Japanese, 高分子学会関西支部, 神戸, Domestic conference

  Oral presentation


• 刺激応答開閉カプセル粒子の合成

  MIZUHARA Syuichiro, OUCHI Takuto, SUZUKI Toyoko, MINAMI Hideto

  第62回高分子研究発表会（神戸）, Jul. 2016, Japanese, 高分子学会関西支部, 神戸, Domestic conference

  Oral presentation


• イオン液体ポリマーを用いた還元型酸化グラフェン含有高分子微粒子の合成

  YAMANE Mitsuyoshi, TOKUDA Masayoshi, THICKETT C. Stuart, ZETTERUND B. Per, MINAMI Hideto

  第62回高分子研究発表会（神戸）, Jul. 2016, Japanese, 高分子学会関西支部, 神戸, Domestic conference

  Oral presentation


• Morphology Control of Poly(ionic liquid) Composite Particles

  OUCHI Takuto, NAKAMURA Ryuma, SUZUKI Toyoko, MINAMI Hideto

  ACA(Asian Conference on Adhesion)2016（第54回日本接着学会年次大会）, Jun. 2016, English, 日本接着学会, 東京, International conference

  Poster presentation


• 微細多孔質構造を有するセルロース粒子の作製

  IMAGAWA Kaori, KONO Kyosuke, SUZUKI Toyoko, MINAMI Hideto

  第65回高分子学会年次大会, May 2016, Japanese, 高分子学会, 神戸, Domestic conference

  Poster presentation


• 汎用ポリマー／イオン液体ポリマー複合微粒子のモルフォロジィ制御

  OUCHI Takuto, NAKAMURA Ryuma, SUZUKI Toyoko, MINAMI Hideto

  第65回高分子学会年次大会, May 2016, Japanese, 高分子学会, 神戸, Domestic conference

  Poster presentation


• 生物由来界面活性剤を用いた乳化重合

  KUROZUKA Aya, ONISHI Shohei, NAGANO Takuto, YAMAGUCHI Takumi, SUZUKI Toyoko, MINAMI Hideto

  第65回高分子学会年次大会, May 2016, Japanese, 高分子学会, 神戸, Domestic conference

  Poster presentation


• 水媒体不均一系での開環重合によるシリコーン粒子の作製

  MITSUI Hiroki, IKUBO Satoshi, SUZUKI Toyoko, MINAMI Hideto

  第65回高分子学会年次大会, May 2016, Japanese, 高分子学会, 神戸, Domestic conference

  Poster presentation


• Preparation of functional polymer particles and formation of colloidal structures

  MINAMI Hideto

  Seminar of Materials Science and Engineering, Apr. 2016, English, 高分子学会, 北京，中国, International conference

  Invited oral presentation


• 高分子微粒子の構造制御とその機能化

  MINAMI Hideto

  第117回黒鉛化合物研究会, Jan. 2016, Japanese, 黒鉛化合物研究会, 神戸市, Domestic conference

  [Invited]

  Invited oral presentation


• ひとつもしくは複数のシリカ粒子を内包したポリマーカプセルの作製

  SUZUKI Toyoko, IKUBO Satoshi, MINAMI Hideto

  日本ゾルゲル学会第１３回討論会, Nov. 2015, Japanese, 日本ゾルゲル学会, 札幌市, Domestic conference

  Poster presentation


• 有機高分子微粒子合成の基礎

  MINAMI Hideto

  「微粒子セミナー」, Oct. 2015, Japanese, 日本接着学会関西支部, 大阪市, Domestic conference

  [Invited]

  Invited oral presentation


• 新規な生物由来界面活性剤を使用したスチレンの乳化重合

  KUROZUKA Aya, ONISHI Shohei, NAGANO Takuto, YAMAGUCHI Takumi, SUZUKI Toyoko, MINAMI Hideto

  2015年度 色材研究発表会, Oct. 2015, Japanese, 色材協会, 習志野市, Domestic conference

  Poster presentation


• 高分子微粒子の構造設計とその機能化

  MINAMI Hideto

  第40回高分子同友会総合講演会（アンコール講演会）, Oct. 2015, Japanese, 高分子同友会, 東京都, Domestic conference

  [Invited]

  Invited oral presentation


• ミニエマルション系でのカチオン開環重合によるシリコーン粒子の作製

  MITSUI Hiroki, IKUBO Satoshi, SUZUKI Toyoko, MINAMI Hideto

  2015年度 色材研究発表会, Oct. 2015, Japanese, 色材協会, 習志野市, Domestic conference

  Poster presentation


• Preparation of Poly (ionic liquid) Hollow Particles Having Permeability-Switchable Shell

  NAKAMURA Ryuma, TOKUDA Masayoshi, SUZUKI Toyoko, MINAMI Hideto

  The 5th Asian Symposium on Emulsion Polymerization and Functional Polymeric Microspheres (ASEPFPM2015), Oct. 2015, English, Chinese Academy of Sciences, 蘇州，中国, International conference

  Oral presentation


• Preparation of Janus Particles with Different Stabilizers and Formation of Colloidal Chains

  MINAMI Hideto

  The 5th Asian Symposium on Emulsion Polymerization and Functional Polymeric Microspheres (ASEPFPM2015), Oct. 2015, English, Chinese Academy of Sciences, 蘇州，中国, International conference

  [Invited]

  Invited oral presentation


• One-Pot Synthesis of Organic/Inorganic Composite Microcapsules by Sol-Gel Process inside a Polymer Capsule

  SUZUKI Toyoko, IKUBO Satoshi, MINAMI Hideto

  The 5th Asian Symposium on Emulsion Polymerization and Functional Polymeric Microspheres (ASEPFPM2015), Oct. 2015, English, Chinese Academy of Sciences, 蘇州，中国, International conference

  Oral presentation


• Morphology Control of Cellulose Particles Having Spongy Structure

  IMAGAWA Kaori, IHARA Yasuhito, SUZUKI Toyoko, MINAMI Hideto

  The 5th Asian Symposium on Emulsion Polymerization and Functional Polymeric Microspheres (ASEPFPM2015), Oct. 2015, English, Chinese Academy of Sciences, 蘇州，中国, International conference

  Oral presentation


• 低分子ゲル・高分子ゲル複合型新規ヘテロダブルネットワークイオン液体ゲルの開発

  片岡 稔和, 石岡 佑美, MIZUHATA MINORU, Minami Hideto, Maruyama Tatsuo

  第64回高分子討論会, Sep. 2015, Japanese, 高分子学会, 仙台市, Domestic conference

  Poster presentation


• 新規な両親媒性可逆的付加開裂連鎖移動(RAFT)剤を用いた水媒体不均一重合

  MINAMI Hideto, SHIMOMURA Kengo, SUZUKI Toyoko, SAKASHITA Keiichi, NODA Tetsuya

  第64回高分子学会討論会, Sep. 2015, Japanese, 高分子学会, 仙台市, Domestic conference

  [Invited]

  Invited oral presentation


• 高導電性を有するダブルネットワークイオン液体ゲルの開発

  片岡 稔和, 石岡 佑美, 水畑 穣, MINAMI HIDETO, Maruyama Tatsuo

  化学工学会第47回秋季大会, Sep. 2015, Japanese, 化学工学会, 札幌市, Domestic conference

  Poster presentation


• ポリメタクリル酸メチル／ポリイオン液体複合粒子のモルフォロジィ制御

  OUCHI Takuto, NAKAMURA Ryuma, SUZUKI Toyoko, MINAMI Hideto

  第64回高分子学会討論会, Sep. 2015, Japanese, 高分子学会, 仙台市, Domestic conference

  Poster presentation


• ポリマーカプセル内ゾルゲル反応によるシリカ内包粒子の作製

  SUZUKI Toyoko, IKUBO Satoshi, MINAMI Hideto

  第64回高分子学会討論会, Sep. 2015, Japanese, 高分子学会, 仙台市, Domestic conference

  [Invited]

  Invited oral presentation


• ポリイオン液体中空粒子の作製及びカプセル特性評価

  NAKAMURA Ryuma, TOKUDA Masayoshi, SUZUKI Toyoko, MINAMI Hideto

  第64回高分子学会討論会, Sep. 2015, Japanese, 高分子学会, 仙台市, Domestic conference

  Oral presentation


• イオン液体を用いて作製した多孔質セルロース粒子の形態制御

  IMAGAWA Kaori, IHARA Yasuhito, SUZUKI Toyoko, MINAMI Hideto

  第64回高分子学会討論会, Sep. 2015, Japanese, 高分子学会, 仙台市, Domestic conference

  Poster presentation


• イオン液体モノマーを利用した複合高分子微粒子の合成とアニオン交換による機能化

  TOKUDA Masayoshi, SHINDO Tatsunori, SUZUKI Toyoko, MINAMI Hideto

  第64回高分子学会討論会, Sep. 2015, Japanese, 高分子学会, 仙台市, Domestic conference

  Oral presentation


• PREPARATION OF JANUS PARTICLES WITH DIFFERENT STABILIZERS AND FORMATION OF ONE-DIMENSIONAL PARTICLE CHAINS

  MINAMI Hideto

  Malaysian Scientific Association, Sep. 2015, English, Kuala Lumpur, Malaysia, International conference

  [Invited]

  Invited oral presentation


• 汎用ポリマー／イオン液体ポリマー複合粒子のモルフォロジィ制御

  OUCHI Takuto, NAKAMURA Ryuma, SUZUKI Toyoko, MINAMI Hideto

  第61回高分子研究発表会（神戸）, Jul. 2015, Japanese, 高分子学会関西支部, 神戸市, Domestic conference

  Oral presentation


• 低分子ゲル・高分子ゲル混在型新規ヘテロダブルネットワークイオン液体ゲルの開発

  片岡 稔和, 石岡 佑美, MIZUHATA MINORU, Minami Hideto, Maruyama Tatsuo

  第61回高分子研究発表会（神戸）, Jul. 2015, Japanese, 高分子学会, 神戸市, Domestic conference

  Poster presentation


• 多孔質セルロース粒子の形態制御

  IMAGAWA Kaori, IHARA Yasuhito, SUZUKI Toyoko, MINAMI Hideto

  第61回高分子研究発表会（神戸）, Jul. 2015, Japanese, 高分子学会関西支部, 神戸市, Domestic conference

  Oral presentation


• 新規な生物由来界面活性剤を用いた乳化重合

  KUROZUKA Aya, ONISHI Shohei, SUZUKI Toyoko, MINAMI Hideto, NAGANO Takuto, YAMAGUCHI Takumi

  第61回高分子研究発表会（神戸）, Jul. 2015, Japanese, 高分子学会関西支部, 神戸市, Domestic conference

  Oral presentation


• 界面・分散を利用してつくる：高分子粒子の設計

  MINAMI Hideto

  第33回関西界面科学セミナー 界面科学・分散技術の基礎と最先端研究, Jul. 2015, Japanese, 日本化学会 コロイドおよび界面化学部会, 大阪市, Domestic conference

  [Invited]

  Invited oral presentation


• ミニエマルション系イオン重合によるシリコーン粒子の作製

  MITSUI Hiroki, IKUBO Satoshi, SUZUKI Toyoko, MINAMI Hideto

  第61回高分子研究発表会（神戸）, Jul. 2015, Japanese, 高分子学会関西支部, 神戸市, Domestic conference

  Oral presentation


• イオン液体ポリマー中空粒子の作製及びカプセル特性評価

  NAKAMURA Ryuma, TOKUDA Masayoshi, SUZUKI Toyoko, MINAMI Hideto

  第61回高分子研究発表会（神戸）, Jul. 2015, Japanese, 高分子学会関西支部, 神戸市, Domestic conference

  Poster presentation


• Colloidal building blocks using hydrogen bonding interactions between stabilizers

  MINAMI Hideto

  IPCG Polymer Colloids Conference 2015, Jul. 2015, English, International Polymer Colloids Group, New Hampshire, USA, International conference

  [Invited]

  Invited oral presentation


• 高分子微粒子構造体の作製

  MINAMI Hideto

  兵庫県立大学講演会, Jun. 2015, Japanese, 兵庫県立大学, 姫路市, Domestic conference

  [Invited]

  Invited oral presentation


• Preparation of polymer particles containing reduced graphene oxide using ionic liquid monomer

  TOKUDA Masayoshi, THICKETT Stuart, ZETTERLUND Per B, MINAMI Hideto

  IPCG Polymer Colloids Conference 2015, Jun. 2015, English, International Polymer Colloids Group, New Hampshire, USA, International conference

  Poster presentation


• Morphology Control of ‘Rattle’-like Polymer Particles Prepared by Suspension Polymerization

  SUZUKI Toyoko, OSUMI Ayumi, MINAMI Hideto

  IPCG Polymer Colloids Conference 2015, Jun. 2015, English, International Polymer Colloids Group, New Hampshire, USA, International conference

  Poster presentation


• Morphology control of Silica particles prepared by sol-gel process in polymer capsule

  IKUBO Satoshi, MINAMI Hideto, SUZUKI Toyoko

  IPCG Polymer Colloids Conference 2015, Jun. 2015, English, International Polymer Colloids Group, New Hampshire, USA, International conference

  Poster presentation


• 乳化重合を用いたイオン液体ポリマー微粒子の合成とそのフィルム表面物性

  TOKUDA Masayoshi, SANADA Toshiharu, SUZUKI Toyoko, MINAMI Hideto

  第64回高分子学会年次大会, May 2015, Japanese, 高分子学会, 札幌, Domestic conference

  Oral presentation


• 異なる分散安定剤を有したヤヌス粒子の作製及び一次元粒子配列制御

  ONISHI Shohei, SUZUKI Toyoko, MINAMI Hideto

  第64回高分子学会年次大会, May 2015, Japanese, 高分子学会, 札幌, Domestic conference

  Oral presentation


• カプセル内ゾルゲル反応によるシリカ内包粒子の生成メカニズム

  IKUBO Satoshi, MINAMI Hideto, SUZUKI Toyoko

  第64回高分子学会年次大会, May 2015, Japanese, 高分子学会, 札幌, 概要, Domestic conference

  Poster presentation


• イオン液体を利用したセルロース粒子の作製とその複合化

  SUZUKI Toyoko, IHARA Yasuhito, MINAMI Hideto

  第64回高分子学会年次大会, May 2015, Japanese, 高分子学会, 札幌, Domestic conference

  Poster presentation


• 高分子微粒子の構造設計とその機能化

  MINAMI Hideto

  高分子同友会勉強会, Feb. 2015, Japanese, 高分子同友会, 大阪市, Domestic conference

  [Invited]

  Invited oral presentation


• 有機高分子微粒子合成の基礎

  MINAMI Hideto

  日本接着学会関西支部「微粒子セミナー」, Nov. 2014, Japanese, 日本接着学会関西支部, 大阪市, Domestic conference

  [Invited]

  Invited oral presentation


• 微細構造セルロース粒子を利用した複合粒子の作製

  SUZUKI Toyoko, IHARA Yasuhito, KONO Kyosuke, MINAMI Hideto

  第１８回高分子ミクロスフェア討論会, Nov. 2014, Japanese, 高分子ミクロスフェア研究会, 福井市, Domestic conference

  Oral presentation


• 水素結合を利用した一次元粒子配列制御

  ONISHI Shohei, SUZUKI Toyoko, MINAMI Hideto

  第１８回高分子ミクロスフェア討論会, Nov. 2014, Japanese, 高分子ミクロスフェア研究会, 福井市, Domestic conference

  Oral presentation


• 新規な可逆的付加開裂連鎖移動(RAFT)剤を用いたミニエマルション重合

  MINAMI Hideto, SHIMOMURA Kengo, SUZUKI Toyoko, SAKASHITA Keiichi, NODA Tetsuya

  第１８回高分子ミクロスフェア討論会, Nov. 2014, Japanese, 高分子ミクロスフェア研究会, 福井市, Domestic conference

  Oral presentation


• 懸濁重合法を用いたイオン液体ポリマー中空粒子の作製

  NAKAMURA Ryuma, TOKUDA Masayoshi, SUZUKI Toyoko, MINAMI Hideto

  第１８回高分子ミクロスフェア討論会, Nov. 2014, Japanese, 高分子ミクロスフェア研究会, 福井市, Domestic conference

  Oral presentation


• セルロース微粒子/複合粒子材料の創成

  MINAMI Hideto

  第3回A-STEP発新技術説明会, Nov. 2014, Japanese, JST, 東京都, Domestic conference

  Oral presentation


• カプセル内ゾルゲル反応によるシリカ内包粒子の作製と形態制御

  IKUBO Satoshi, SUZUKI Toyoko, MINAMI Hideto

  第１８回高分子ミクロスフェア討論会, Nov. 2014, Japanese, 高分子ミクロスフェア研究会, 福井市, Domestic conference

  Oral presentation


• Preparation of poly(ionic liquid) particles by emulsion polymerization” Workshop on Polymer Nanoparticles

  TOKUDA Masayoshi, SANADA Toshiharu, SHINDO Tatsunori, SUZUKI Toyoko, MINAMI Hideto

  Workshop on Polymer Nanoparticles, Seil-Assembly and Colloids, Nov. 2014, English, University of New South Wales, Sydney, Australia, International conference

  Poster presentation


• Morphology control of polymeric nanoparticles using membrane emulsification” Workshop on Polymer Nanoparticles

  AGUSTINA Sri, TOKUDA Masayoshi, MINAMI Hideto, BOYER Cyrille, ZETTERLUND B. Per

  Workshop on Polymer Nanoparticles, Seil-Assembly and Colloids, Nov. 2014, English, University of New South Wales, Sydney, Australia, International conference

  Poster presentation


• ポリイオン液体中空粒子の作製とその機能変換

  NAMAMURA RYUMA, TOKUDA MASAYOSHI, SHINDO TASTUNORI, SUZUKI TOYOKO, MINAMI HIDETO

  2014年度色材研究発表会, Oct. 2014, Japanese, 色材協会, 名古屋, Domestic conference

  Poster presentation


• セルロース/汎用ポリマー複合粒子の合成

  IHARA YASUHITO, KONO KYOSUKE, SUZUKI TOYOKO, MINAMI HIDETO

  2014年度色材研究発表会, Oct. 2014, Japanese, 色材協会, 名古屋, Domestic conference

  Poster presentation


• 分散安定剤間の水素結合を利用した一次元粒子配列制御

  ONISHI Shohei, KONO Kyosuke, MATSUNAGA Naoyuki, SUZUKI Toyoko, MINAMI Hideto

  第63回高分子討論会, Sep. 2014, Japanese, 高分子学会, 長崎市, Domestic conference

  Poster presentation


• 低分子ゲル・高分子ゲル混在型新規ヘテロダブルネットワークイオノゲルの調製

  片岡 稔和, 石岡 佑美, Minami Hideto, 水畑 穣, Maruyama Tatsuo

  第63回高分子討論会, Sep. 2014, Japanese, 高分子学会, 長崎市, Domestic conference

  Poster presentation


• 低分子ゲル・高分子ゲル共存型新規ヘテロダブルネットワークイオン液体ゲルの開発

  片岡 稔和, 石岡 佑美, Minami Hideto, 水畑 穣, Maruyama Tatsuo

  化学工学会 第46回秋季大会, Sep. 2014, Japanese, 化学工学会, 福岡市, Domestic conference

  Poster presentation


• 温度により形状を変化させるイオン液体含有自立ゲル粒子の作製

  MINAMI Hideto, ICHIKAWA Hiroko, SUZUKI Toyoko

  第63回高分子討論会, Sep. 2014, Japanese, 高分子学会, 長崎市, Domestic conference

  [Invited]

  Invited oral presentation


• セルロース(複合)粒子の作製とその構造制御

  MINAMI Hideto

  第1回関西ものづくり技術シーズ発表会, Sep. 2014, Japanese, 近畿経済産業局, 大阪市, Domestic conference

  Oral presentation


• シリカ内包カプセル粒子の形態制御とそのメカニズム

  IKUBO Satoshi, MINAMI Hideto, SUZUKI Toyoko

  第63回高分子討論会, Sep. 2014, Japanese, 高分子学会, 長崎市, Domestic conference

  Poster presentation


• Rattle-likeカプセル粒子の作製

  SUZUKI Toyoko, OSUMI Ayumi, MINAMI Hideto

  第63回高分子討論会, Sep. 2014, Japanese, 高分子学会, 長崎市, Domestic conference

  [Invited]

  Invited oral presentation


• RAFT Polymerization in a Miniemulsion System using a Novel Type of Amphiphilic RAFT Agent

  MINAMI Hideto, SHIMOMURA Kengo, SUZUKI Toyoko, SAKASHITA Keiichi, NODA Teppei

  5th World Congress on Adhesion and Related Phenomena, Sep. 2014, English, 日本接着学会, 奈良市, International conference

  Oral presentation


• Control of Morphology of ‘Rattle’-like Particles Prepared by One-step Suspension Polymerization

  SUZUKI Toyoko, OSUMI Ayumi, MINAMI Hideto

  5th World Congress on Adhesion and Related Phenomena, Sep. 2014, English, 日本接着学会, 奈良市, International conference

  Poster presentation


• 低分子・高分子共存型新規ヘテロダブルネットワークゲルの開発

  片岡 稔和, 石岡 佑美, Minami Hideto, Maruyama Tatsuo

  第60回高分子研究発表会（神戸）, Jul. 2014, Japanese, 高分子学会, 神戸市, Domestic conference

  Poster presentation


• Preparation of polymer particles with encapsulated silica

  IKUBO SATOSHI, MINAMI HIDETO, SUZUKI TOYOKO

  第60回高分子研究発表会（神戸）, Jul. 2014, Japanese, 神戸, Domestic conference

  Oral presentation


• イオン液体ポリマーをシェルとする中空粒子の作製

  NAMAMURA RYUMA, TOKUDA MASAYOSHI, SHINDO TASTUNORI, SUZUKI TOYOKO, MINAMI HIDETO

  第60回高分子研究発表会（神戸）, Jul. 2014, Japanese, 神戸, Domestic conference

  Oral presentation


• 汎用高分子/イオン液体ポリマー複合微粒子の合成とその構造制御

  SHINDO Tatsunori, TOKUDA Masayoshi, SUZUKI Toyoko, MINAMI Hideto

  第63回高分子学会年次大会, May 2014, Japanese, 高分子学会, 名古屋市, Domestic conference

  Poster presentation


• 小粒子内包カプセル粒子の一段階作製

  SUZUKI Toyoko, OSUMI Ayumi, MINAMI Hideto

  第63回高分子学会年次大会, May 2014, Japanese, 高分子学会, 名古屋市, Domestic conference

  Poster presentation


• 機能性粒子材料の創生

  MINAMI Hideto

  色材講演会, Oct. 2013, Japanese, 大阪市, Domestic conference

  [Invited]

  Invited oral presentation


• Preparation of quaternary ammonium-based poly(ionic liquid) particles by emulsion polymerization

  TOKUDA Masayoshi, SANADA Toshiharu, SHINDO Tatsunori, SUZUKI Toyoko, MINAMI Hideto

  色材協会創立85周年記念会議, Oct. 2013, English, 東京都, International conference

  Poster presentation


• Preparation of one-dimensional particle array utilizing hydrogen bonding interaction

  ONISHI Shohei, KONO Kyosuke, MATSUNAGA Naoyuki, SUZUKI Toyoko, MINAMI Hideto

  色材協会創立85周年記念会議, Oct. 2013, English, 東京都, International conference

  Poster presentation


• One-step synthesis of “rattle”-like particle (particles-encapsulated particle) by suspension polymerization

  OSUMI Ayumi+i, MINAMI Hideto, SUZUKI Toyoko

  色材協会創立85周年記念会議, Oct. 2013, English, 東京都, International conference

  Poster presentation


• 新しい重合性界面活性剤を用いた難溶性ナノ材料可溶化技術の開発

  舟崎 裕一, 本庄 崇文, 宝得 一貴, MINAMI HIDETO, 竹中 武蔵, OGINO CHIAKI, Maruyama Tatsuo

  第62回高分子討論会, Sep. 2013, Japanese, 高分子学会, 金沢市, Domestic conference

  Oral presentation


• イオン液体不均一系での高分子/無機酸化物複合粒子の合成

  MINAMI Hideto

  日本セラミックス協会 第26回秋季シンポジウム, Sep. 2013, Japanese, 長野市, Domestic conference

  [Invited]

  Invited oral presentation


• イオン液体中でのゾル-ゲル反応を利用したコアシェル型有機/無機複合粒子の合成

  KINOSHITA Keigo, TSUJI Tomoki, YANAGIMOTO Hiroshi, MINAMI Hideto

  第64回コロイドおよび界面化学討論会, Sep. 2013, Japanese, 名古屋市, Domestic conference

  Poster presentation


• 乳化重合によるイオン液体ポリマー微粒子の合成

  TOKUDA Masayoshi, SANADA Toshiharu, SHINDO Tatsunori, SUZUKI Toyoko, MINAMI Hideto

  第59回高分子研究発表会（神戸）, Jul. 2013, Japanese, 神戸市, Domestic conference

  Poster presentation


• 中空高分子微粒子の合成とその中空構造を利用した機能化

  MINAMI Hideto

  住友化学講演会, Jul. 2013, Japanese, 宝塚市, Domestic conference

  [Invited]

  Invited oral presentation


• 高分子分散安定剤間の水素結合を利用した粒子配列制御

  ONISHI Shohei, KONO Kyosuke, MATSUNAGA Naoyuki, SUZUKI Toyoko, MINAMI Hideto

  第59回高分子研究発表会（神戸）, Jul. 2013, Japanese, 神戸市, Domestic conference

  Oral presentation


• 高分子微粒子存在下での脱水素反応を利用した高分子/窒化ホウ素複合粒子の合成

  MATSUNAGA Naoyuki, KINOSHITA Keigo, MINAMI Hideto

  第20回クロマトグラフィーシンポジウム, Jun. 2013, Japanese, 神戸市, Domestic conference

  Poster presentation


• 塩溶液中における四級アンモニウム系イオン液体ポリマー微粒子の特異な溶解挙動

  TOKUDA Masayoshi, MINAMI Hideto

  第20回クロマトグラフィーシンポジウム, Jun. 2013, Japanese, 神戸市, Domestic conference

  Poster presentation


• シード分散重合法を用いた汎用高分子/イオン液体ポリマー複合微粒子の合成

  SHINDO Tatsunori, TOKUDA Masayoshi, MINAMI Hideto

  第20回クロマトグラフィーシンポジウム, Jun. 2013, Japanese, 神戸市, Domestic conference

  Poster presentation


• イオン液体を利用した多孔性セルロース微粒子の形成機構

  KONO Kyosuke, SUZUKI Toyoko, SHIMOMURA Kengo, MINAMI Hideto

  第20回クロマトグラフィーシンポジウム, Jun. 2013, Japanese, 神戸市, Domestic conference

  Poster presentation


• Specific Solubility Behavior of Poly(Ionic Liquid) Particles by Changing the Counter Anion

  TOKUDA Masayoshi, MINAMI Hideto

  IPCG Research Conference 2013, Jun. 2013, English, 上海，中国, International conference

  Poster presentation


• SaPSeP法を利用した小粒子内包カプセル粒子の作製

  OSUMI Ayumi, MINAMI Hideto, SUZUKI Toyoko

  第20回クロマトグラフィーシンポジウム, Jun. 2013, Japanese, 神戸市, Domestic conference

  Poster presentation


• Preparation of Raspberry-like Particles Utilizing Hydrogen Bonding Interaction between Polymeric Stabilizers

  MINAMI Hideto, MIZUTA Yusuke, SUZUKI Toyoko

  IPCG Research Conference 2013, Jun. 2013, English, 上海，中国, International conference

  Poster presentation


• Preparation of Poly(ionic liquid)/Commodity Polymer Composite Particles by Seeded Dispersion Polymerization

  MINAMI Hideto, SHINDO Tatsunori, TOKUDA Masayoshi, MIZUTA Yusuke

  IPCG Research Conference 2013, Jun. 2013, English, 上海，中国, International conference

  Poster presentation


• Preparation of Hollow Polymer Particles with Encapsulated Small Particles by Suspension Polymerization

  SUZUKI Toyoko, OSUMI Ayumi+i, MINAMI Hideto

  IPCG Research Conference 2013, Jun. 2013, English, 上海，中国, International conference

  Poster presentation


• Preparation of Boron Nitride and Polystyrene/Boron Nitride Composite Particles by Dehydrogenation Reactions in Ionic Liquids

  MINAMI Hideto, MATSUNAGA Naoyuki, KINOSHITA Keigo

  IPCG Research Conference 2013, Jun. 2013, English, 上海，中国, International conference

  Poster presentation


• One-pot Synthesis of Polymer Particles with Encapsulated Hollow Silica Particles

  SUZUKI Toyoko, UENISHI Hironobu, MINAMI Hideto

  IPCG Research Conference 2013, Jun. 2013, English, 上海，中国, International conference

  Poster presentation


• Morphology Control of Cellulose Particles Utilizing an Ionic Liquid

  MINAMI Hideto, KONO Kyosuke, SUZUKI Toyoko, SHIMOMURA Kengo

  IPCG Research Conference 2013, Jun. 2013, English, 上海，中国, International conference

  Poster presentation


• 水素結合を利用した有機/無機複合ラズベリー状粒子の作製

  CHANG Cheng, SUZUKI Toyoko, MINAMI Hideto

  第62回高分子学会年次大会, May 2013, Japanese, 京都市, Domestic conference

  Oral presentation


• マイクロカプセル内ゾルゲル反応によるシリカ粒子内包ポリマー粒子の作成

  SUZUKI Toyoko, UENISHI Hironobu, CHANG Cheng, MINAMI Hideto

  第62回高分子学会年次大会, May 2013, Japanese, 京都市, Domestic conference

  Poster presentation


• アニオン交換を利用したイオン液体ポリマー微粒子の特異な溶解挙動

  TOKUDA Masayoshi, MINAMI Hideto

  第62回高分子学会年次大会, May 2013, Japanese, 京都市, Domestic conference

  Poster presentation


• 重合性界面活性剤による難溶性材料可溶化技術の開発

  本庄 崇文, 宝得 一貴, MINAMI HIDETO, 竹中 武蔵, OGINO CHIAKI, Maruyama Tatsuo

  化学工学会 第78年会, Mar. 2013, Japanese, 化学工学会, 大阪大学, Domestic conference

  Oral presentation


• 高分子微粒子の合成とその構造設計

  MINAMI Hideto

  昭和電工講演会, Dec. 2012, Japanese, たつの市, Domestic conference

  Public discourse


• Preparation of Polystyrene/Highly Crystalline Magnesium Hydroxide Composite Particles having Core-Shell Morphology by Seeded Dispersion Sol-Gel Process in an Ionic Liquid

  KINOSHITA Keigo, MINAMI Hideto, YANAGIMOTO Hiroshi, TSUJI Tomoki

  The 9th SPSJ International Polymer Conference (IPC2012), Dec. 2012, English, 神戸市, International conference

  Oral presentation


• Preparation of micron-sized monodisperse poly(ionic liquid) particles

  TOKUDA Masayoshi, MINAMI Hideto

  The 9th SPSJ International Polymer Conference (IPC2012), Dec. 2012, English, 神戸市, International conference

  Poster presentation


• 分散重合によるイオン液体ポリマー微粒子の合成とその特異な溶解挙動

  TOKUDA Masayoshi, MINAMI Hideto

  第17回高分子ミクロスフェア討論会, Nov. 2012, Japanese, 仙台市, Domestic conference

  Oral presentation


• 分散安定剤水素結合を利用したヘテロ凝集法による異形高分子粒子の作製

  MINAMI Hideto, MIZUTA Yusuke

  第17回高分子ミクロスフェア討論会, Nov. 2012, Japanese, 仙台市, Domestic conference

  Oral presentation


• 大学シーズからベンチャー起業~材料系研究からの挑戦

  MINAMI Hideto

  工学フォーラム2012, Nov. 2012, Japanese, 神戸市, Domestic conference

  [Invited]

  Invited oral presentation


• 多数の小粒子を内包したカプセル粒子の作製

  SUZUKI Toyoko, OSUMI Ayumi, MINAMI Hideto

  第17回高分子ミクロスフェア討論会, Nov. 2012, Japanese, 仙台市, Domestic conference

  Oral presentation


• 感温性を有する複合ゲル粒子の作製

  SUZUKI Toyoko, ICHIKAWA Hiroko, MINAMI Hideto

  第17回高分子ミクロスフェア討論会, Nov. 2012, Japanese, 仙台市, Domestic conference

  Oral presentation


• イオン液体を利用したセルロース微粒子の作製

  MINAMI Hideto, KONO Kyosuke, SUZUKI Toyoko, SHIMOMURA Kengo

  第17回高分子ミクロスフェア討論会, Nov. 2012, Japanese, 仙台市, Domestic conference

  Oral presentation


• 溶媒吸収放出法を利用した微細構造を有するセルロース微粒子の作製

  MINAMI Hideto, KONO Kyosuke, SUZUKI Toyoko, SHIMOMURA Kengo

  2012年度色材研究発表会, Sep. 2012, Japanese, 堺市, Domestic conference

  Poster presentation


• 固相分散系での扁平高分子粒子の合成

  MINAMI Hideto, KOJIMA Akihiro, SUZUKI Toyoko

  第61回高分子学会討論会, Sep. 2012, Japanese, 名古屋市, Domestic conference

  Poster presentation


• マイクロサスペンション重合による小粒子内包カプセル粒子の作製

  SUZUKI Toyoko, OSUMI Ayumi, MINAMI Hideto

  第61回高分子学会討論会, Sep. 2012, Japanese, 名古屋市, Domestic conference

  Poster presentation


• はがれない界面活性剤による表面改質技術の開発

  本庄 崇文, 宝得 一貴, MINAMI HIDETO, Maruyama Tatsuo

  化学工学会 第44回秋季大会, Sep. 2012, Japanese, 化学工学会, 仙台市, Domestic conference

  Poster presentation


• シリカ内包ポリマーカプセル粒子のワンポット作製

  SUZUKI Toyoko, CHANG Cheng, MINAMI Hideto

  2012年度色材研究発表会, Sep. 2012, Japanese, 堺市, Domestic conference

  Poster presentation


• イオン液体中における脱水素反応を利用した有機/無機複合粒子の合成

  MINAMI Hideto, MATSUNAGA Naoyuki, KINOSHITA Keigo, HIRAOKA Motoki, YANAGIMOTO Hiroshi

  2012年度色材研究発表会, Sep. 2012, Japanese, 堺市, Domestic conference

  Poster presentation


• イオン液体を利用したセルロース微粒子の作製と形態制御

  MINAMI Hideto, SHIMOMURA Kengo, SUZUKI Toyoko, KONO Kyosuke

  第61回高分子学会討論会, Sep. 2012, Japanese, 名古屋市, Domestic conference

  Poster presentation


• イオン液体を含有した自立型温度応答性複合ゲル粒子の作製

  MINAMI Hideto, ICHIKAWA Hiroko, SUZUKI Toyoko

  第61回高分子学会討論会, Sep. 2012, Japanese, 名古屋市, Domestic conference

  Oral presentation


• イオン液体ポリマーを用いた複合高分子微粒子の合成

  MINAMI Hideto, SHINDO Tatsunori, TOKUDA Masayoshi, MIZUTA Yusuke

  2012年度色材研究発表会, Sep. 2012, Japanese, 堺市, Domestic conference

  Poster presentation


• 溶媒吸収放出法によるセルロース微粒子の形態制御

  MINAMI Hideto, KONO Kyosuke, SUZUKI Toyoko, SHIMOMURA Kengo

  第58回高分子研究発表会（神戸）, Jul. 2012, Japanese, 神戸市, Domestic conference

  Oral presentation


• 小粒子内包カプセル粒子の作製

  SUZUKI Toyoko, OSUMI Ayumi, MINAMI Hideto

  第58回高分子研究発表会（神戸）, Jul. 2012, Japanese, 神戸市, Domestic conference

  Oral presentation


• 高分子微粒子材料の設計と機能化

  MINAMI Hideto

  積水IM研究会, Jul. 2012, Japanese, 京都市, Domestic conference

  Public discourse


• 高分子微粒子の合成とその構造設計

  MINAMI Hideto

  7月創造例会, Jul. 2012, Japanese, 姫路市, Domestic conference

  [Invited]

  Invited oral presentation


• 固相分散系での非真球中空高分子粒子の合成

  MINAMI Hideto, KOJIMA Akihiro, SUZUKI Toyoko

  第57回高分子夏季大学, Jul. 2012, Japanese, 大津市, Domestic conference

  Poster presentation


• シード分散重合法を用いたイオン液体ポリマー複合微粒子の合成

  MINAMI Hideto, SHINDO Tatsunori, TOKUDA Masayoshi, MIZUTA Yusuke

  第57回高分子夏季大学, Jul. 2012, Japanese, 大津市, Domestic conference

  Poster presentation


• シード分散重合法によるポリイオン液体複合微粒子の合成

  MINAMI Hideto, SHINDO Tatsunori, TOKUDA Masayoshi, MIZUTA Yusuke

  第58回高分子研究発表会（神戸）, Jul. 2012, Japanese, 神戸市, Domestic conference

  Oral presentation


• イオン液体を利用した微細構造を有するセルロース微粒子の作製

  MINAMI Hideto, SHIMOMURA Kengo, SUZUKI Toyoko, KONO Kyosuke

  第57回高分子夏季大学, Jul. 2012, Japanese, 大津市, Domestic conference

  Poster presentation


• イオン液体を媒体としたコア-シェル型ポリスチレン/窒化ホウ素複合粒子の合成

  MINAMI Hideto, MATSUNAGA Naoyuki, KINOSHITA Keigo, YANAGIMOTO Hiroshi

  第58回高分子研究発表会（神戸）, Jul. 2012, Japanese, 神戸市, Domestic conference

  Oral presentation


• 分散重合による汎用高分子/イオン液体ポリマー複合微粒子の合成

  MINAMI Hideto, SHINDO Tatsunori, TOKUDA Masayoshi, MIZUTA Yusuke

  第50回日本接着学会年次大会, Jun. 2012, Japanese, 福島市, Domestic conference

  Poster presentation


• 分散安定剤水素結合を利用したラズベリー状異形粒子の合成

  MINAMI Hideto, MIZUTA Yusuke

  第50回日本接着学会年次大会, Jun. 2012, Japanese, 福島市, Domestic conference

  Oral presentation


• 高分子微粒子材料の合成とその構造制御

  MINAMI Hideto

  花王株式会社化学品研究所セミナー, Jun. 2012, Japanese, 和歌山市, Domestic conference

  Public discourse


• カプセル粒子内ゾルゲル反応によるシリカ内包粒子の作成

  SUZUKI Toyoko, CHANG Cheng, MINAMI Hideto

  第50回日本接着学会年次大会, Jun. 2012, Japanese, 福島市, Domestic conference

  Oral presentation


• イオン液体中におけるポリスチレン/窒化ホウ素複合粒子の合成

  MINAMI Hideto, MATSUNAGA Naoyuki, KINOSHITA Keigo, YANAGIMOTO Hiroshi

  第50回日本接着学会年次大会, Jun. 2012, Japanese, 福島市, Domestic conference

  Poster presentation


• Preparations of polystyrene/magnesium hydroxide composite particles by seeded dispersion sol-gel process in an ionic liquid

  KINOSHITA Keigo, MINAMI Hideto

  IUPAC World Polymer Congress (MACRO2012), Jun. 2012, English, Virginia, USA, International conference

  Poster presentation


• Preparations of micron-sized monodsperse poly(ionic liquid) particles by dispersion polymerization

  TOKUDA Masayoshi, MINAMI Hideto, MIZUTA Yusuke

  IUPAC World Polymer Congress (MACRO2012), Jun. 2012, English, Virginia, USA, International conference

  Poster presentation


• 超臨界二酸化炭素媒体におけるメタクリル酸メチルの可逆移動触媒分散重合(dispersion RTCP)

  TANIYAMA Tomoya, MINAMI Hideto, OKUBO Masayoshi

  第61回高分子学会年次大会, May 2012, Japanese, 横浜市, Domestic conference

  Oral presentation


• 高分子分散安定剤間の水素結合を利用したラズベリー状粒子の作製

  MINAMI Hideto, MIZUTA Yusuke

  第61回高分子学会年次大会, May 2012, Japanese, 横浜市, Domestic conference

  Poster presentation


• マイクロカプセル内でのゾルゲル反応によるシリカ内包ポリマー粒子の作成

  SUZUKI Toyoko, CHANG Cheng, MINAMI Hideto

  第61回高分子学会年次大会, May 2012, Japanese, 横浜市, Domestic conference

  Oral presentation


• イオン液体を媒体としたシード分散ゾル-ゲル反応によるポリスチレン/水酸化マグネシウム複合粒子の合成

  KINOSHITA Keigo, MINAMI Hideto, YANAGIMOTO Hiroshi

  第92回日本化学会春季年会, Mar. 2012, Japanese, 日本化学会, 横浜市, Domestic conference

  Oral presentation


• 無乳化剤TERP乳化重合:粒子形成機構

  KITAYAMA Yukiya, MORIBE Hirotaka, MINAMI Hideto, OKUBO Masayoshi

  「ナノ構造・物性」第4回研究会, Jan. 2012, Japanese, 神戸大学自然科学系先端融合研究環, 神戸市, Domestic conference

  Oral presentation


• シェルに開口部を有するカプセル微粒子の作製

  SUZUKI Toyoko, HATA Yuko, MINAMI Hideto, OKUBO Masayoshi

  「ナノ構造・物性」第4回研究会, Jan. 2012, Japanese, 神戸大学自然科学系先端融合研究環, 神戸市, Domestic conference

  Oral presentation


• イオン液体中でのポリスチレン/水酸化マグネシウム複合粒子の合成

  MINAMI Hideto, KINOSHITA Keigo

  「ナノ構造・物性」第4回研究会, Jan. 2012, Japanese, 神戸大学自然科学系先端融合研究環, 神戸市, Domestic conference

  Oral presentation


• イオン液体中でのゾル-ゲル反応による有機/無機複合粒子の合成とその機構

  MINAMI Hideto, KINOSHITA Keigo, TSUJI Tomoki, YANAGIMOTO Hiroshi

  第2回イオン液体討論会, Dec. 2011, Japanese, イオン液体研究会, 京都市, Domestic conference

  Poster presentation


• イオン液体を利用した機能性高分子微粒子の機能化

  MINAMI Hideto

  高分子講演会(東海)〜高分子微粒子の精密合成と機能性材料への応用〜, Dec. 2011, Japanese, 高分子学会東海支部, 津市, Domestic conference

  Invited oral presentation


• Preparation of Poly(ionic liquid) Particles by Dispersion Polymerization

  MINAMI Hideto, TOKUDA Masayoshi, MIZUTA Yusuke, YAMAGAMI Tomoe

  WINPTech2011, Dec. 2011, English, 神戸大学連携創造本部イノベーション推進部門, 神戸市, International conference

  Poster presentation


• Preparation of Functional Polymer Particles Using Ionic Liquids

  MINAMI Hideto

  the 4th Asian Symposium on Emulsion Polymerization and Functional Polymeric Microspheres (ASEPFPM2011), Dec. 2011, English, ASEPFPM, 香港,中国, International conference

  Invited oral presentation


• Free-standing Thermosensitive Composite Gel Particles Including Ionic Liquid

  MINAMI Hideto, ICHIKAWA Hiroko, SUZUKI Toyoko, NAKAI Masaya

  WINPTech2011, Dec. 2011, English, 神戸大学連携創造本部イノベーション推進部門, 神戸市, International conference

  Poster presentation


• 分散重合法によるイオン液体ポリマー微粒子の合成

  MINAMI Hideto, TOKUDA Masayoshi, MIZUTA Yusuke, YAMAGAMI Tomoe

  2011年度色材研究発表会, Nov. 2011, Japanese, 色材協会, 東京都, Domestic conference

  Poster presentation


• 水素結合を利用したヘテロ凝集法によるラズベリー状粒子の作製

  MIZUTA Yusuke, MINAMI Hideto

  2011年度色材研究発表会, Nov. 2011, Japanese, 色材協会, 東京都, Domestic conference

  Poster presentation


• 自立型温度応答性複合ゲル粒子の作製

  MINAMI Hideto, ICHIKAWA Hiroko, SUZUKI Toyoko, NAKAI Masaya

  2011年度色材研究発表会, Nov. 2011, Japanese, 色材協会, 東京都, Domestic conference

  Poster presentation


• 超臨界二酸化炭素媒体における可逆移動触媒重合(dispersion RTCP)によるPMMA-b-PS粒子の作製

  TANIYAMA Tomoya, KURODA Taisuke, MINAMI Hideto, OKUBO Masayoshi

  第60回高分子学会討論会, Sep. 2011, Japanese, 高分子学会, 岡山市, Domestic conference

  Poster presentation


• 水分散系における選択的表面開始制御/リビングラジカル重合によるキノコ状粒子の合成

  YAMAGAMI Tomoe, TANAKA Takuya, SUZUKI Toyoko, MINAMI Hideto, OKUBO Masayoshi

  第60回高分子学会討論会, Sep. 2011, Japanese, 高分子学会, 岡山市, Domestic conference

  Poster presentation


• 開口部を有するポリジビニルベンゼン中空高分子微粒子の作製

  SUZUKI Toyoko, HATA Yuko, MINAMI Hideto, OKUBO Masayoshi

  第60回高分子学会討論会, Sep. 2011, Japanese, 高分子学会, 岡山市, Domestic conference

  Oral presentation


• シード分散ゾルゲル法による有機/無機複合粒子合成におけるイオン液体の効果

  MINAMI Hideto, KINOSHITA Keigo, TSUJI Tomoki, YANAGIMOTO Hiroshi

  第60回高分子学会討論会, Sep. 2011, Japanese, 高分子学会, 岡山市, Domestic conference

  Oral presentation


• イオン液体をカプセル化した微粒子の応用展開

  MINAMI Hideto, NAKAI Masaya, FUKAUMI Hiroki, SUZUKI Toyoko, OKUBO Masayoshi

  第60回高分子学会討論会, Sep. 2011, Japanese, 高分子学会, 岡山市, Domestic conference

  Oral presentation


• In-situミセル核形成による制御/リビング乳化重合(emulsion TERP)

  KITAYAMA Yukiya, MORIBE Hirotaka, MINAMI Hideto, OKUBO Masayoshi

  第60回高分子学会討論会, Sep. 2011, Japanese, 高分子学会, 岡山市, Domestic conference

  Oral presentation


• 溶媒吸収放出法を利用したセルロース微粒子の作製

  MINAMI Hideto, SHIMOMURA Kengo, SUZUKI Toyoko, KINOSHITA Keigo

  第57回高分子研究発表会(神戸), Jul. 2011, Japanese, 高分子学会関西支部, 神戸市, Domestic conference

  Poster presentation


• 分散重合を用いたイオン液体ポリマー微粒子の合成

  MINAMI Hideto, TOKUDA Masayoshi, MIZUTA Yusuke, YAMAGAMI Tomoe

  第57回高分子研究発表会(神戸), Jul. 2011, Japanese, 高分子学会関西支部, 神戸市, Domestic conference

  Oral presentation


• イオン液体を含有した感温性ゲル粒子の作製

  MINAMI Hideto, ICHIKAWA Hiroko, SUZUKI Toyoko, NAKAI Masaya

  第57回高分子研究発表会(神戸), Jul. 2011, Japanese, 高分子学会関西支部, 神戸市, Domestic conference

  Oral presentation


• Preparation of Polystyrene/Magnesium Oxide Composite Particles in an Ionic Liquid

  MINAMI Hideto, KINOSHITA Keigo, TSUJI Tomoki, YANAGIMOTO Hiroshi

  IPCG Polymer Colloids Conference 2011, Jul. 2011, English, IPCG Group, New Hampshire; US, International conference

  Poster presentation


• Preparation of Ionic Liquid-encapsulated Polymer Particles

  MINAMI Hideto, FUKAUMI Hiroki, OKUBO Masayoshi

  IPCG Polymer Colloids Conference 2011, Jul. 2011, English, IPCG Group, New Hampshire; US, International conference

  Poster presentation


• Emulsifier-Free, Organotellurium-Mediated Living Radical Emulsion Polymerization (Emulsion TERP) of Methyl Methacrylate

  KITAYAMA Yukiya, KISHIDA Kazuya, MINAMI Hideto, OKUBO Masayoshi

  IPCG Polymer Colloids Conference 2011, Jul. 2011, English, IPCG Group, New Hampshire; US, International conference

  Poster presentation


• Emulsifier-Free, Organotellurium-Mediated Living Radical Emulsion Polymerization: Initial Stage of Polymrtization

  KITAYAMA Yukiya, MORIBE Hirotaka, MINAMI Hideto, OKUBO Masayoshi

  IPCG Polymer Colloids Conference 2011, Jul. 2011, English, IPCG Group, New Hampshire; US, International conference

  Poster presentation


• 原子移動ラジカル重合法によるパラフィン内包カプセル粒子の合成

  MIZOWAKI Tsugumi, SUZUKI Toyoko, MINAMI Hideto, OKUBO Masayoshi

  第49回日本接着学会年次大会, Jun. 2011, Japanese, 日本接着学会, 豊田市, Domestic conference

  Oral presentation


• ミクロンサイズで単分散なイオン液体ポリマー粒子の合成

  MINAMI Hideto, TOKUDA Masayoshi, MIZUTA Yusuke, YAMAGAMI Tomoe

  第49回日本接着学会年次大会, Jun. 2011, Japanese, 日本接着学会, 豊田市, Domestic conference

  Poster presentation


• シード分散ゾル-ゲル反応によるポリスチレン/酸化マグネシウム複合粒子の合成

  MINAMI Hideto, KINOSHITA Keigo, TSUJI Tomoki, YANAGIMOTO Hiroshi

  第49回日本接着学会年次大会, Jun. 2011, Japanese, 日本接着学会, 豊田市, Domestic conference

  Poster presentation


• イオン液体感温性高分子をシェルとしたカプセル高分子微粒子の合成

  MINAMI Hideto, NAKAI Masaya, SUZUKI Toyoko, OKUBO Masayoshi

  第49回日本接着学会年次大会, Jun. 2011, Japanese, 日本接着学会, 豊田市, Domestic conference

  Oral presentation


• 無乳化剤TERP乳化重合によるポリメタクリル酸メチル粒子の合成

  KISHIDA Kazuya, MORIBE Hirotaka, KITAYAMA Yukiya, MINAMI Hideto, OKUBO Masayoshi

  第60回高分子学会年次大会, May 2011, Japanese, 高分子学会, 大阪市, Domestic conference

  Oral presentation


• 無乳化剤TERP乳化重合における重合初期の重要性

  KITAYAMA Yukiya, MORIBE Hirotaka, MINAMI Hideto, OKUBO Masayoshi

  第60回高分子学会年次大会, May 2011, Japanese, 高分子学会, 大阪市, Domestic conference

  Oral presentation


• 超臨界二酸化炭素媒体における窒素化合物を触媒として用いたメタクリル酸メチルの可逆移動触媒重合

  TANIYAMA Tomoya, KURODA Taisuke, GOTO Atsushi, FUKUDA Takeshi, MINAMI Hideto, OKUBO Masayoshi

  第60回高分子学会年次大会, May 2011, Japanese, 高分子学会, 大阪市, Domestic conference

  Poster presentation


• 架橋ポリアクリル酸微粒子の抽出挙動におけるイオン液体の影響

  MINAMI Hideto, MIZUTA Yusuke, OKUBO Masayoshi

  第60回高分子学会年次大会, May 2011, Japanese, 高分子学会, 大阪市, Domestic conference

  Poster presentation


• イオン液体中におけるポリスチレン/酸化マグネシウム複合粒子の合成

  KINOSHITA Keigo, MINAMI Hideto, TSUJI Tomoki, YANAGIMOTO Hiroshi, OKUBO Masayoshi

  第60回高分子学会年次大会, May 2011, Japanese, 高分子学会, 大阪市, Domestic conference

  Poster presentation


• 無機複合粒子の合成

  MINAMI Hideto, KINOSHITA Keigo, TARUTANI Yasunori, TAJIMA Kimitaka

  ナノ学会 「ナノ構造・物性」部会 第3回研究会, Mar. 2011, Japanese, ナノ学会, 神戸市, Domestic conference

  Oral presentation


• SaPSeP法を用いたイオン液体含有感温性高分子微粒子の合成

  MINAMI Hideto, NAKAI Masaya, ICHKAWA Hiroko, SUZUKI Toyoko

  ナノ学会 「ナノ構造・物性」部会 第3回研究会, Mar. 2011, Japanese, ナノ学会, 神戸市, Domestic conference

  Oral presentation


• Preparation of Poly(acrylic acid) by atom transfer radical polymerization in Supercritical Carbon Dioxide

  MINAMI Hideto, TANAKA Atsushi, KAGAWA Yasuyuki, OKUBO Masayoshi

  The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010), Dec. 2010, English, 日本化学会, ハワイ, USA, International conference

  Oral presentation


• Preparation of ionic liquid-encapsulated polymer particles

  MINAMI Hideto, FUKAUMI Hiroki, OKUBO Masayoshi

  The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010), Dec. 2010, English, 日本化学会, ハワイ, USA, International conference

  Poster presentation


• Organic Composite Particles in an Ionic Liquid

  KINOSHITA Keigo, MINAMI Hideto, TARUTANI Yasunori, TAJIMA Kimitaka, OKUBO Masayoshi

  The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010), Dec. 2010, English, 日本化学会, ハワイ, USA, International conference

  Poster presentation


• Preparation of Block Copolymer Particles by Emulsifier-Free; organotellurium-Mediated Living Radical Emulsion Polymerization

  KITAYAMA Yukiya, KISHIDA Kazuya, MINAMI Hideto, OKUBO Masayoshi

  The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010), Dec. 2010, English, 日本化学会, ハワイ, USA, International conference

  Oral presentation


• Preparation of "mushroom-like" nonspherical polymer particles by controlled/living radical polymerization in aqueous dispersed systems

  OKUBO Masayoshi, TANAKA Takuya, FUKAMI Nobuko, MINAMI Hideto

  The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010), Dec. 2010, English, 日本化学会, ハワイ, USA, International conference

  Oral presentation


• Emulsifier-free; organotellurium-mediated living radical emulsion polymerization at high monomer concentration

  KITAYAMA Yukiya, SASAKI Shogo, MINAMI Hideto, OKUBO Masayoshi

  The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010), Dec. 2010, English, 日本化学会, ハワイ, USA, International conference

  Poster presentation


• 有機テルル化合物を用いたスチレンの制御/リビング乳化重合

  KITAYAMA Yukiya, MINAMI Hideto, OKUBO Masayoshi

  第16回高分子ミクロスフェア討論会, Nov. 2010, Japanese, 高分子ミクロスフェア研究会, 福井市, Domestic conference

  Oral presentation


• 水媒体不均一重合における滴中での相分離構造を利用した異形高分子微粒子の作製

  YAMAGAMI Tomoe, TANAKA Takuya, SUZUKI Toyoko, MINAMI Hideto, OKUBO Masayoshi

  第16回高分子ミクロスフェア討論会, Nov. 2010, Japanese, 高分子ミクロスフェア研究会, 福井市, Domestic conference

  Oral presentation


• 水媒体不均一系における窒素化合物を触媒として用いた可逆移動触媒重合

  YORIZANE Mika, KITAYAMA Yukiya, MINAMI Hideto, OKUBO Masayoshi

  2010年度 色材研究発表会, Nov. 2010, Japanese, 色材協会, 東京都, Domestic conference

  Poster presentation


• 感温性を有するイオン液体含有高分子粒子の合成

  MINAMI Hideto, NAKAI Masaya, SUZUKI Toyoko, OKUBO Masayoshi

  第16回高分子ミクロスフェア討論会, Nov. 2010, Japanese, 高分子ミクロスフェア研究会, 福井市, Domestic conference

  Oral presentation


• イオン液体中におけるポリスチレン/アルミナ複合粒子の合成

  KINOSHITA Keigo, MINAMI Hideto, TARUTANI Yasunori, TAJIMA Kimitaka, YANAGIMOTO Hiroshi, OKUBO Masayoshi

  第16回高分子ミクロスフェア討論会, Nov. 2010, Japanese, 高分子ミクロスフェア研究会, 福井市, Domestic conference

  Oral presentation


• イオン液体中におけるアルミナ粒子の合成

  KINOSHITA Keigo, MINAMI Hideto, OKUBO Masayoshi

  2010年度 色材研究発表会, Nov. 2010, Japanese, 色材協会, 東京都, Domestic conference

  Poster presentation


• イオン液体中での分散重合により作製した架橋ポリアクリル酸粒子の水抽出挙動

  MINAMI Hideto, KIMURA Akira, MIZUTA Yusuke, OKUBO Masayoshi

  第16回高分子ミクロスフェア討論会, Nov. 2010, Japanese, 高分子ミクロスフェア研究会, 福井市, Domestic conference

  Oral presentation


• SaPSeP法によるイオン液体含有カプセル粒子の合成

  MINAMI Hideto, FUKAUMI Hiroki, OKUBO Masayoshi

  2010年度 色材研究発表会, Nov. 2010, Japanese, 色材協会, 東京都, Domestic conference

  Poster presentation


• 超臨界二酸化炭素媒体中における窒素化合物を触媒として用いた制御/リビングラジカル重合(RTCP)による高分子微粒子の合成

  TANIYAMA Tomoya, KURODA Taisuke, GOTO Atsushi, FUKUDA Takeshi, MINAMI Hideto, OKUBO Masayoshi

  第56回高分子研究発表会(神戸), Jul. 2010, Japanese, 高分子学会, 神戸市, Domestic conference

  Oral presentation


• 機能性高分子微粒子 イオン液体を利用して

  MINAMI Hideto

  はりま産学交流会 創造例会, Jul. 2010, Japanese, はりま産学交流会, 姫路市, Domestic conference

  Invited oral presentation


• マイクロサスペンション重合により誘起される相分離構造を利用した半球状高分子微粒子の合成

  YAMAGAMI Tomoe, TANAKA Takuya, SUZUKI Toyoko, MINAMI Hideto, OKUBO Masayoshi

  第56回高分子研究発表会(神戸), Jul. 2010, Japanese, 高分子学会, 神戸市, Domestic conference

  Oral presentation


• イオン液体中での分散重合により作製したポリアクリル酸粒子の水抽出挙動

  MINAMI Hideto, MIZUTA Yusuke, OKUBO Masayoshi

  第56回高分子研究発表会(神戸), Jul. 2010, Japanese, 高分子学会, 神戸市, Domestic conference

  Oral presentation


• Emulsifier-Free; Organotellurium-Mediated Living Radical Emulsion Polymerization: Particle Formation

  KITAYAMA Yukiya, CHAIYASAT Amorn, MINAMI Hideto, OKUBO Masayoshi

  43rd IUPAC World Polymer Congress (MACRO2010), Jul. 2010, English, IUPAC, Glasgow; UK, International conference

  Poster presentation


• Atom Transfer Radical Polymerization of Acrylic Acid by Use of Supercritical Carbon Dioxide as medium

  MINAMI Hideto, TANAKA Atsushi, KAGAWA Yasuyuki, OKUBO Masayoshi

  43rd IUPAC World Polymer Congress (MACRO2010), Jul. 2010, English, IUPAC, Glasgow; UK, International conference

  Poster presentation


• 水分散系での二段階制御/リビングラジカル重合による特異なモルフォロジィを有する高分子微粒子の合成

  KITAYAMA Yukiya, KAGAWA Yasuyuki, MINAMI Hideto, OKUBO Masayoshi

  第48回日本接着学会年次大会, Jun. 2010, Japanese, 日本接着学会, 大阪市, Domestic conference

  Oral presentation


• イオン液体中での架橋ポリアクリル酸の合成

  MINAMI Hideto, KIMURA Akira, KINOSHITA Keigo, OKUBO Masayoshi

  第48回日本接着学会年次大会, Jun. 2010, Japanese, 日本接着学会, 大阪市, Domestic conference

  Oral presentation


• 発芽状の特異形態を有する中空高分子微粒子の生成

  ITOYAMA Yukiko, ITO Mizuki, SUZUKI Toyoko, MINAMI Hideto, OKUBO Masayoshi

  第59回高分子学会年次大会, May 2010, Japanese, 高分子学会, 横浜市, Domestic conference

  Poster presentation


• 超臨界二酸化炭素媒体中でのゲルマニウム化合物を触媒として用いた制御/リビングラジカル重合によるポリスチレン粒子の合成

  KURODA Taisuke, TANAKA Atsushi, GOTO Atsushi, FUKUDA Takeshi, MINAMI Hideto, OKUBO Masayoshi

  第59回高分子学会年次大会, May 2010, Japanese, 高分子学会, 横浜市, Domestic conference

  Oral presentation


• 環境適応媒体中での高分子微粒子の創製

  MINAMI Hideto

  平成22年度色材セミナー, May 2010, Japanese, 色材協会, 大阪市, Domestic conference

  Invited oral presentation


• ヘキサデカンを内包したポリエチレングリコールジメタクリレートカプセル粒子の作製とその熱物性

  SUZUKI Toyoko, MIZOWAKI Tsugumi, MINAMI Hideto, OKUBO Masayoshi

  第59回高分子学会年次大会, May 2010, Japanese, 高分子学会, 横浜市, Domestic conference

  Poster presentation


• イオン液体中での無機/有機複合粒子の合成

  MINAMI Hideto, KINOSHITA Keigo, TARUTANI Yasunori, TAJIMA Kimitaka, OKUBO Masayoshi

  第59回高分子学会年次大会, May 2010, Japanese, 高分子学会, 横浜市, Domestic conference

  Poster presentation


• イオン液体を内包した高分子微粒子の合成

  MINAMI Hideto, FUKAUMI Hiroki, OKUBO Masayoshi

  第59回高分子学会年次大会, May 2010, Japanese, 高分子学会, 横浜市, Domestic conference

  Poster presentation


• SaPSeP法を利用したイオン液体含有感温性高分子微粒子の合成

  MINAMI Hideto, NAKAI Masaya, FUKAUMI Hiroki, OKUBO Masayoshi

  第59回高分子学会年次大会, May 2010, Japanese, 高分子学会, 横浜市, Domestic conference

  Poster presentation


• イオン液体中における無機粒子の作製

  MINAMI Hideto, KINOSHITA Keigo, TARUTANI Yasunori, OKUBO Masayoshi

  日本化学会第90春季年会, Mar. 2010, Japanese, 日本化学会, 東大阪市, Domestic conference

  Oral presentation


• イオン液体を用いた高分子微粒子の創製と機能化

  MINAMI Hideto

  ナノ学会 「ナノ構造・物性」部会 第2回研究会, Jan. 2010, Japanese, ナノ学会 「ナノ構造・物性」部会, 神戸市, Domestic conference

  [Invited]

  Invited oral presentation


• 窒素化合物を用いたメタクリル酸メチルの制御リビングラジカルマイクロサスペンション重合

  YORIZANE Mika, NAGASUGA Takashi, TANAKA Atsushi, KITAYAMA Yukiya, MINAMI Hideto, OKUBO Masayoshi, GOTO Atsushi, FUKUDA Takeshi

  第18回ポリマー材料フォーラム, Nov. 2009, Japanese, 高分子学会, 東京都, Domestic conference

  Poster presentation


• 高分子微粒子の機能化〜イオン液体を利用して〜

  MINAMI Hideto

  第73会関西高分子若手研究会, Nov. 2009, Japanese, 高分子学会関西支部, 豊中市, Domestic conference

  [Invited]

  Invited oral presentation


• SaPSeP法を利用したイオン液体内包導電性カプセル粒子の合成

  MINAMI Hideto, FUKAUMI Hiroki, OKUBO Masayoshi

  第18回ポリマー材料フォーラム, Nov. 2009, Japanese, 高分子学会, 東京都, Domestic conference

  Poster presentation


• 開口部を有するミクロンサイズの単分散中空橋架け高分子微粒子の作製

  ITO Mizuki, MINAMI Hideto, OKUBO Masayoshi

  第58回高分子学会討論会, Sep. 2009, Japanese, 高分子学会, 熊本市, Domestic conference

  Oral presentation


• イオン液体媒体下でのコア・シェル構造を有する複合高分子微粒子の合成

  MINAMI Hideto, KIMURA Akira, OKUBO Masayoshi

  第58回高分子学会討論会, Sep. 2009, Japanese, 高分子学会, 熊本市, Domestic conference

  Oral presentation


• イオン液体を利用した機能性微粒子の創製

  MINAMI Hideto

  東海高分子研究会講演会(夏期合宿), Sep. 2009, Japanese, 高分子学会東海支部, 岐阜市, Domestic conference

  [Invited]

  Invited oral presentation


• Preparation of Poly(acrylic acid) Particles by Dispersion Polymerization in Ionic Liquid

  MINAMI Hideto, KIMURA Akira, OKUBO Masayoshi

  3rd Asian Symposium on Emulsion Polymerization and Functional Polymeric Microspheres, Sep. 2009, English, ASEPFPM, South Korea, Jeju, International conference

  Oral presentation


• Morphology of Block Copolymer Particles Synthesized by Two-step AGET ATRP in Aqueous Dispersed Systems: Effect of Polymerization Temperature

  KITAYAMA Yukiya, KAGAWA Yasuyuki, MINAMI Hideto, OKUBO Masayoshi

  3rd Asian Symposium on Emulsion Polymerization and Functional Polymeric Microspheres, Sep. 2009, English, ASEPFPM, South Korea, Jeju, International conference

  Poster presentation


• 超臨界二酸化炭素中でのゲルマニウム化合物を用いた制御リビングラジカル分散重合

  KURODA Taisuke, TANAKA Atsushi, MINAMI Hideto, GOTO Atsushi, FUKUDA Takeshi, OKUBO Masayoshi

  第55回高分子研究発表会(神戸), Jul. 2009, Japanese, 高分子学会関西支部, 神戸市, Domestic conference

  Poster presentation


• イオン液体中での無機粒子・無機有機複合粒子の合成

  MINAMI Hideto, KINOSHITA Keigo, TARUTANI Yasunori, KINOSHITA Keigo, OKUBO Masayoshi

  第55回高分子研究発表会(神戸), Jul. 2009, Japanese, 高分子学会関西支部, 神戸市, Domestic conference

  Oral presentation


• イオン液体を含有した感温性高分子微粒子の合成

  MINAMI Hideto, NAKAI Masaya, FUKAUMI Hiroki, OKUBO Masayoshi

  第55回高分子研究発表会(神戸), Jul. 2009, Japanese, 高分子学会関西支部, 神戸市, Domestic conference

  Poster presentation


• 各重合温度におけるシード乳化AGET ATRP法によるブロックポリマー微粒子の作製とその異相構造

  KITAYAMA Yukiya, KAGAWA Yasuyuki, MINAMI Hideto, OKUBO Masayoshi

  第58回高分子学会年次大会, May 2009, Japanese, 高分子学会, 神戸市, Domestic conference

  Poster presentation


• 開口部を有するポリスチレンポリエチレングリコールジメタクリレート中空橋架け高分子微粒子の作製

  ITO Mizuki, MINAMI Hideto, OKUBO Masayoshi

  第58回高分子学会年次大会, May 2009, Japanese, 高分子学会, 神戸市, Domestic conference

  Poster presentation


• イオン液体中でのシード分散重合によるポリアクリル酸ポリスチレン複合高分子微粒子の合成

  MINAMI Hideto, KIMURA Akira, OKUBO Masayoshi

  第58回高分子学会年次大会, May 2009, Japanese, 高分子学会, 神戸市, Domestic conference

  Poster presentation


• SaPSeP法を利用したイオン液体内包カプセル粒子の合成

  MINAMI Hideto, FUKAUMI Hiroki, OKUBO Masayoshi

  第58回高分子学会年次大会, May 2009, Japanese, 高分子学会, 神戸市, Domestic conference

  Poster presentation


• Preparation of Nylon-6 Particles in Ionic Liquids

  MINAMI Hideto, TARUTANI Yasunori, YOSHIDA Kazuhiro, OKUBO Masayoshi

  The 2nd international symposium on advanced particles (ISAP2009), Apr. 2009, English, 第2回先端粒子国際シンポジウム, 横浜市, International conference

  Oral presentation


• 機能性高分子微粒子の合成とその応用

  MINAMI Hideto

  高分子材料開発のための俯瞰的シンポジウム, Jan. 2009, Japanese, 京都大学桂キャンパス, Domestic conference

  Invited oral presentation


• イオン液体を反応媒体とする高分子微粒子の創製

  MINAMI Hideto

  第168回溶融塩委員会, Jan. 2009, Japanese, 神戸大学瀧川記念学術交流会館, Domestic conference

  Invited oral presentation


• 環境適応型媒体中での高分子微粒子の創製

  MINAMI Hideto

  2008年度高分子計算機科学研究会･高分子ナノテクノロジー研究会 合同討論会, Dec. 2008, Japanese, 東京工業大学, Domestic conference

  Invited oral presentation


• 超臨界CO2中でのポリアクリル酸粒子の合成

  TANAKA Atsushi, KAGAWA Yasuyuki, MINAMI Hideto, OKUBO Masayoshi

  第15回高分子ミクロスフェア討論会, Nov. 2008, Japanese, 神戸大学, Domestic conference

  Oral presentation


• イオン液体中でのポリアクリル酸粒子の合成

  MINAMI Hideto, KIMURA Akira, OKUBO Masayoshi

  第15回高分子ミクロスフェア討論会, Nov. 2008, Japanese, 神戸大学, Domestic conference

  Oral presentation


• Preparation of Onion-like Multilayered PiBMA-b-PS Particles by Seeded Emulsion Polymerization with AGET ATRP

  KITAYAMA Yukiya, KAGAWA Yasuyuki, MINAMI Hideto, OKUBO Masayoshi

  Asia Polymer Symposium (APOSYM/2008), Oct. 2008, English, 済南大学（中国）, International conference

  Poster presentation


• Preparation of Micron-sized, Monodisperse Functional Hollow Polymer Particles

  MINAMI Hideto

  22th Seminar of Advanced Particle Handling Science, Oct. 2008, English, 大阪工業大学大阪センター, International conference

  Invited oral presentation


• Preparation of Micrometer-sized, Monodisperse, Hollow Polystyrene/Poly(ethylene glycol dimethacrylate) Particles with a Single Hole in the Shell

  ITO Miduki, FURUKAWA Yumiko, MINAMI Hideto, OKUBO Masayoshi

  Asia Polymer Symposium (APOSYM/2008), Oct. 2008, English, 済南大学（中国）, International conference

  Poster presentation


• Preparation of Composite Polymer Particles by Seeded Dispersion Polymerization in Ionic Liquids

  MINAMI Hideto, YOSHIDA Kazuhiro, OKUBO Masayoshi

  Asia Polymer Symposium (APOSYM/2008), Oct. 2008, English, 済南大学（中国）, International conference

  Oral presentation


• Effect of the particle size on the shell formation mechanism of hollow poly(divinyl benzene) particles with multiple holes in the shell

  HATA Yuko, SUZUKI Toyoko, MINAMI Hideto, OKUBO Masayoshi

  Asia Polymer Symposium (APOSYM/2008), Oct. 2008, English, 済南大学（中国）, International conference

  Poster presentation


• イオン液体中での加水分解重合によるナイロン6粒子の合成

  MINAMI Hideto, TARUTANI Yasunori, YOSHIDA Kazuhiro, OKUBO Masayoshi

  第57回高分子学会討論会, Sep. 2008, Japanese, 大阪市立大学, Domestic conference

  Oral presentation


• イオン液体を媒体とした分散重合によるポリアクリル酸粒子の合成

  MINAMI Hideto, KIMURA Akira, YOSHIDA Kazuhiro, OKUBO Masayoshi

  第57回高分子学会討論会, Sep. 2008, Japanese, 大阪市立大学, Domestic conference

  Poster presentation


• 水媒体不均一系制御/リビングラジカル重合法による多層構造を有するブロックポリマー微粒子の合成

  KITAYAMA Yukiya, KAGAWA Yasuyuki, MINAMI Hideto, OKUBO Masayoshi

  第54回高分子研究発表会（神戸）, Jul. 2008, Japanese, 兵庫県中央労働センター, Domestic conference

  Poster presentation


• イオン液体を内包したカプセル粒子の合成

  MINAMI Hideto, FUKAUMI Hiroki, YOSHIDA Kazuhiro, OKUBO Masayoshi

  第54回高分子研究発表会（神戸）, Jul. 2008, Japanese, 兵庫県中央労働センター, Domestic conference

  Poster presentation


• Preparation of polystyrene/poly(acrylic acid) composite particles by seeded dispersion polymerization in an ionic liquid

  MINAMI Hideto, YOSHIDA Kazuhiro, OKUBO Masayoshi

  Polymer Colloids: From Design to Biomedical and Industrial Applications, Jul. 2008, English, Prague，Institute of Macromolecular Chemistry AS CR, International conference

  Oral presentation


• 開口部を有するポリスチレン／ポリエチレングリコールジメタクリレート中空高分子微粒子の作製

  ITO Miduki, FURUKAWA Yumiko, MINAMI Hideto, OKUBO Masayoshi

  第57回高分子学会年次大会, May 2008, Japanese, 横浜, Domestic conference

  Poster presentation


• マイクロサスペンション重合法による開口部を有する中空高分子微粒子の合成

  HATA Yuko, SUZUKI Toyoko, MINAMI Hideto, OKUBO Masayoshi

  第57回高分子学会年次大会, May 2008, Japanese, 横浜, Domestic conference

  Poster presentation


• イオン液体中での高分子微粒子の創製

  MINAMI Hideto

  関西H&I研究会 第16回研究会, Mar. 2008, Japanese, 岡山, Domestic conference

  Invited oral presentation


• Preparation of Composite Polymer Particles

  MINAMI Hideto, YOSHIDA Kazuhiro, OKUBO Masayoshi

  第10回環太平洋高分子国際会議, Dec. 2007, English, 神戸, International conference

  Poster presentation


• Nitroxide-Mediated Precipitation Polymerization of Styrene in

  ALDABBAGH Fawaz, ZETTERLUND Per Bo, MINAMI Hideto, OKUBO Masayoshi

  第10回環太平洋高分子国際会議, Dec. 2007, English, 神戸, International conference

  Poster presentation


• 水媒体不均一系における原子移動ラジカル重合の速度論

  KAGAWA Yasuyuki, ZETTERLUND Per Bo, MINAMI Hideto, OKUBO Masayoshi

  第56回高分子討論会, Sep. 2007, Japanese, 名古屋，日本, Domestic conference

  Oral presentation


• 完全水媒体不均一系原子移動ラジカル重合によるブロックポリマー微粒子の合成とそのモルフォロジィ

  KAGAWA Yasuyuki, MINAMI Hideto, 周 健, OKUBO Masayoshi

  第56回高分子討論会, Sep. 2007, Japanese, 名古屋，日本, Domestic conference

  Oral presentation


• イオン液体中での機能性高分子微粒子の創製

  MINAMI Hideto, YOSHIDA Kazuhiro, TARUTANI Yasunori, KIMURA Akira, OKUBO Masayoshi

  第56回高分子討論会, Sep. 2007, Japanese, 名古屋，日本, Domestic conference

  Oral presentation


• 超臨界二酸化炭素媒体中での感温性高分子の合成

  Atsushi Tanaka, Hideto Minami, Masayoshi Okubo

  第53回高分子研究発表会（神戸）, Jul. 2007, Japanese, 神戸, Domestic conference

  Poster presentation


• 機能性高分子微粒子の創製とその応用

  MINAMI Hideto

  第1回 日本材料学会分子動力学部門委員会, Jul. 2007, Japanese, 神戸，日本, Domestic conference

  Invited oral presentation


• 開口部を有する中空橋かけ高分子微粒子の合成

  Mizuki Ito, Yumiko Furukawa, Hideto Minami, Masayoshi Okubo

  第53回高分子研究発表会（神戸）, Jul. 2007, Japanese, 神戸, Domestic conference

  Oral presentation


• マイクロサスペンション重合法による開口部を有する高分子微粒子の合成

  畠 裕子, SUZUKI Toyoko, 南 秀人, OKUBO Masayoshi

  第53回高分子研究発表会(神戸), Jul. 2007, Japanese, 高分子学会, 兵庫県中央労働センター,神戸市, Domestic conference

  Poster presentation


• イオン液体中における水溶性高分子微粒子の合成

  Hideto Minami, Akira Kimura, Kazuhiro Yoshida, Masayoshi Okubo

  第53回高分子研究発表会（神戸）, Jul. 2007, Japanese, 神戸, Domestic conference

  Poster presentation


• イオン液体中におけるナイロン粒子の合成

  Hideto Minami, Yasunori Tarutani, Kazuhiro Yoshida, Masayoshi Okubo

  第53回高分子研究発表会（神戸）, Jul. 2007, Japanese, 神戸, Domestic conference

  Poster presentation


• 機能性高分子微粒子の合成とその応用

  Hideto Minami

  神戸大学大学院工学研究科機械工学専攻材料物理コロキウム, Jun. 2007, Japanese, 神戸大学, Domestic conference

  Invited oral presentation


• Compartmentalization and partitioning effect in microemulsion ATRP

  KAGAWA Yasuyuki, ZETTERLUND Per Bo, MINAMI Hideto, OKUBO Masayoshi

  2007 Gordon Research Conference, Jun. 2007, English, ＵＳＡ, International conference

  Oral presentation


• ミニエマルション系での原子移動ラジカル重合における銅触媒の分配及びコンパートメンタリゼーション効果

  Yasuyuki Kagawa, Hideto Minami, Per B. Zetterlund, Masayoshi Okubo

  第56回高分子学会年次大会, May 2007, Japanese, 京都, Domestic conference

  Poster presentation


• マイクロエマルション系での原子移動ラジカル重合におけるノニオン性乳化剤の影響

  Masahiro Kawasaki, Hideto Minami, Yasuyuki Kagawa, Masayoshi Okubo

  第56回高分子学会年次大会, May 2007, Japanese, 京都, Domestic conference

  Poster presentation


• SaPSeP法による開口部を有する単中空高分子微粒子の作製

  Yumiko Furukawa, Hideto Minami, Masayoshi Okubo

  第56回高分子学会年次大会, May 2007, Japanese, 京都, Domestic conference

  Poster presentation


• Preparation of polymer particles in environmentally friendly media

  MINAMI Hideto

  The Spring meeting of the Polymer Society of Korea, Apr. 2007, English, Jeju, Korea, International conference

  [Invited]

  Invited oral presentation


• 環境適応型微粒子材料の創製技術の開発

  Masayoshi Okubo, Hideto Minami, Toyoko Suzuki, Per B. Zetterlund

  神戸大学東京フェア, Jan. 2007, Japanese, 東京, Domestic conference

  Poster presentation


• Influence of Emulsifier on Shell Formation of Hollow Polymer Particles

  Hideto Minami

  Max-Planck-Institute of Colloids and Interfaces, Dec. 2006, English, Potsdam, International conference

  Invited oral presentation


• 相分離自己組織化(SaPSeP)法を用いた高光散乱TiO2含有複合中空高分子微粒子の合成

  Hideto Minami, Hirotsugu Kawata, Masayoshi Okubo

  第15回ポリマー材料フォーラム, Nov. 2006, Japanese, 千里ライフサイエンスセンター, Domestic conference

  Poster presentation


• 相分離自己組織化(SaPSeP)法を用いたマイクロサスペンション重合による単中空高分子微粒子の合成

  Yumiko Furukawa, Hideto minami, Masayoshi Okubo

  第15回ポリマー材料フォーラム, Nov. 2006, Japanese, 千里ライフサイエンスセンター, Domestic conference

  Poster presentation


• 水媒体不均一系での制御リビングラジカル重合におけるコンパートメンタリゼーション効果

  Yasuyuki Kagawa, ZETTERLUND Per Bo, Hideto Minami, Masayoshi Okubo

  第14回高分子ミクロスフェア討論会, Nov. 2006, Japanese, 繊協ビル8階繊協閣ホール, Domestic conference

  Oral presentation


• イオン液体を媒体とした分散重合による高分子微粒子の作製

  Hideto Minami, Kazuhiro Yoshida, Masayoshi Okubo

  第14回高分子ミクロスフェア討論会, Nov. 2006, Japanese, 繊協ビル8階繊協閣ホール, Domestic conference

  Oral presentation


• TEMP-Mediated Cross-linking Radical Polymerization of Styrene and Divinylbenzene in Miniemulsion

  MD.Nur Alam, ZETTERLUND Per Bo, MINAMI Hideto, OKUBO Masayoshi

  第14回高分子ミクロスフェア討論会, Nov. 2006, English, 繊協ビル8階繊協閣ホール, Domestic conference

  Oral presentation


• 超臨界二酸化炭素媒体中での二段階分散重合により作製した複合高分子微粒子のモルフォロジィ

  Masayoshi Okubo, Hideto Minami, Junji Shigematsu, Shintaro Kuwahara

  第55回高分子学会討論会, Sep. 2006, Japanese, 富山, Domestic conference

  Oral presentation


• 中空微粒子創製法とその応用

  Hideto Minami

  第59回コロイドおよび界面化学討論会, Sep. 2006, Japanese, 北海道, Domestic conference

  Invited oral presentation


• イオン液体中での分散重合による高分子微粒子の合成

  Hideto Minami, Kazuhiro Yoshida, Masayoshi Okubo

  第55回高分子学会討論会, Sep. 2006, Japanese, 富山, Domestic conference

  Oral presentation


• Nitroxide-Mediated Radical Dispersion Polymerization of Styrene in Supercritical Carbon Dioxide

  MCHALE Ronan, ALDABBAGH Fawaz, ZETTERLUND Per Bo, MINAMI Hideto, OKUBO Masayoshi

  第55回高分子学会討論会, Sep. 2006, English, 富山, Domestic conference

  Oral presentation


• Effect of nonionic emulsifier on molecular weight distribution in atom transfer radical polymerization in microemulsion

  MINAMI Hideto, KAWASAKI Masahiro, KAGAWA Yasuyuki, OKUBO Masayoshi

  International Symposium on Radical Polymerization: Kinetics and Mechanism (SML'06), Sep. 2006, English, イタリア, International conference

  Poster presentation


• Atom transfer radical polymerization in aqueous heterogeneous systems: Deactivator partitioning between oil and aqueous phase

  KAGAWA Yasuyuki, ZETTERLUND Per Bo, MINAMI Hideto, OKUBO Masayoshi

  International Symposium on Radical Polymerization: Kinetics and Mechanism (SML'06), Sep. 2006, English, イタリア, International conference

  Oral presentation


• イオン液体中における高分子微粒子の合成

  Kazuhiro Yoshida, Hideto Minami, Masayoshi Okubo

  第52回高分子研究発表会（神戸）, Jul. 2006, Japanese, 神戸, Domestic conference

  Oral presentation


• Preparation of polystyrene particles in an ionic liquid

  MINAMI Hideto, YOSHIDA Kazuhiro, OKUBO Masayoshi

  Asia Polymer Symposium (APOSYM/2006), Jun. 2006, English, 韓国, International conference

  Poster presentation


• Polyaddition reaction of epoxy resin with the SaPSeP method for the preparation of micron-sized, cross-linked capsule particle

  MINAMI Hideto, KANAMORI Hiroyuki, OKUBO Masayoshi

  Asia Polymer Symposium (APOSYM/2006), Jun. 2006, English, 韓国, International conference

  Oral presentation


• 超臨界二酸化炭素中でのPDMS-PMMAブロックコポリマーを分散安定剤とするメタクリル酸メチルの分散重合

  Masayoshi Okubo, Shintaro Kuwahara, Hideto Minami

  第55回高分子学会年次大会, May 2006, Japanese, Nagoya, Japan, Domestic conference

  Invited oral presentation


• 原子移動制御／リビングラジカルシード乳化重合における温度の影響とシミュレーション

  Yasuyuki Kagawa, ZETTERLUND Per Bo, Hideto Minami, Masayoshi Okubo

  第55回高分子学会年次大会, May 2006, Japanese, 名古屋, Domestic conference

  Oral presentation


• 原子移動制御/リビングマイクロエマルション重合における界面活性剤の影響

  Masahiro Kawasaki, Yasuyuki Kagawa, Hideto Minami, Masayoshi Okubo

  第55回高分子学会年次大会, May 2006, Japanese, 名古屋, Domestic conference

  Poster presentation


• 円盤状高分子微粒子の合成とその熱力学的安定性

  Teruhisa Fujibayashi, Hideto Minami, Masayoshi Okubo

  第55回高分子学会年次大会, May 2006, Japanese, Nagoya, Japan, Domestic conference

  Poster presentation


• 環境適応型微粒子材料の創製技術の開発

  OKUBO Masayoshi, 南 秀人, SUZUKI Toyoko, PerB.Zetterlund

  工学フォーラム2005, Dec. 2005, Japanese, 神戸大学, ホテルオークラ神戸, Domestic conference

  Poster presentation


• 高光散乱能を有するTiO2含有複合中空高分子微粒子の合成

  MINAMI Hideto, OKUBO Masayoshi, KAWATA Hirotsugu

  2005年度 色材研究発表会, Oct. 2005, Japanese, 大阪府立労働センター, Domestic conference

  Oral presentation


• SaPSeP法を用いた重付加反応によるマイクロカプセルの合成とその応用

  MINAMI Hideto, OKUBO Masayoshi, KANAMORI Hiroyuki

  第54回高分子学会討論会, Sep. 2005, Japanese, 山形大学, Domestic conference

  Oral presentation


• 水媒体不均一系原子移動型制御/リビングラジカル重合

  KAWASAKI Masahiro, KAGAWA Yasuyuki, MINAMI Hideto, OKUBO Masayoshi

  第51回高分子研究発表会（神戸）, Jul. 2005, Japanese, 兵庫県中央労働センター, Domestic conference

  Poster presentation


• ミクロンサイズの単分散な磁性カプセル粒子の合成

  MURAI Maiko, MINAM Hideto, OKUBO Masayoshi

  第51回高分子研究発表会（神戸）, Jul. 2005, Japanese, 兵庫県中央労働センター, Domestic conference

  Poster presentation


• Seeded ATRP in aqueous heterogeneous medium

  KAGAWA Yasuyuki, MINAMI Hideto, OKUBO Masayoshi

  2005 Gordon Research conference, Jul. 2005, English, USATilton school, International conference

  Poster presentation


• SaPSeP法による単中空高分子微粒子の合成

  FURUKAWA Yumiko, MINAM Hideto, OKUBO Masayoshi

  第51回高分子研究発表会（神戸）, Jul. 2005, Japanese, 兵庫県中央労働センター, Domestic conference

  Poster presentation


• Pendant Reactivities and Crosslinking in TEMPO-Mediated Radical Copolymerization of Styrene and Divinylbenzene in Miniemulsion and Bulk

  MD NUR Alam, ZETTERLUND Per Bo, MINAMI Hideto, OKUBO Masayoshi

  第51回高分子研究発表会（神戸）, Jul. 2005, English, 兵庫県中央労働センター, Domestic conference

  Poster presentation


• Microemulsion atom transfer radical polymerization

  OKUBO Masayoshi, KAGAWA Yasuyuki, MINAMI Hideto, KAWASAKI Masahiro

  2005 Gordon Research conference, Jul. 2005, English, USATilton school, International conference

  Poster presentation


• 超臨界二酸化炭素媒体中での制御／リビングラジカル重合を用いたブロックポリマー微粒子の合成

  KUWAHARA Shintaro, SHIGEMATSU Jyunji, KAGAWA Yasuyuki, MINAMI Hideto, OKUBO Masayoshi

  第43回日本接着学会年次大会, Jun. 2005, Japanese, 関西大学, Domestic conference

  Poster presentation


• SaPSeP法を用いた重付加反応による硬化剤内包型マイクロカプセルの調整

  OKUBO Masayoshi, KANAMORI Hiroyuki, MINAMI Hideto

  第43回日本接着学会年次大会, Jun. 2005, Japanese, 関西大学, Domestic conference

  Poster presentation


• 懸濁重合法による高光散乱性高分子微粒子の合成

  KAWATA Hirotsugu, OKUBO Masayoshi, MINAMI Hideto

  第54回高分子学会年次大会, May 2005, Japanese, 横浜, Domestic conference

  Poster presentation


• 開口部を有する中空高分子微粒子の合成

  MINAMI Hideto, KOBAYASHI Hiroshi, FURUKAWA Yumiko, OKUBO Masayoshi

  第54回高分子学会年次大会, May 2005, Japanese, 横浜, Domestic conference

  Poster presentation


• SaPSeP法によるヘキサデカン内包中空高分子微粒子の作製

  SUZUKI Toyoko, MINAMI Hideto, OGINO Yumiko, OKUBO Masayoshi

  第54回高分子学会年次大会, May 2005, Japanese, 高分子学会, 横浜国際会議場, Domestic conference

  Poster presentation


• Preparation of micron-sized, cured epoxy resin capsules by polyaddetion reaction using the SaPSeP method

  MINAMI, Hideto, KANAMORI Hiroyuki, OKUBO Masayoshi

  第2回ミクロスフェア国際討論会 2005, 2005, English, 不明, 不明, International conference

  Oral presentation


• Nitroxide-Mediated Controlled/Living Free Radical Copolymerization of Styrene and Divinylbenzene in Aqueous Miniemulsion

  OKUBO Masayoshi, M. N. Alam, MINAMI Hideto

  第2回ミクロスフェア国際討論会 2005, 2005, English, 不明, 不明, International conference

  Oral presentation


• 環境適応型微粒子材料の創製技術の開発

  OKUBO Masayoshi, MINAMI Hideto, SUZUKI Toyoko, Per B. Zetterlund

  工学フォーラム2004, Dec. 2004, Japanese, 神戸大学, 神戸市産業振興センター, Domestic conference

  Poster presentation


• Production of cured epoxy resin particles having one hollow by polyaddition reaction

  Hideto Minami, Yoshiteru Oshima, Masayoshi Okubo

  International Symposium on Polymers in Dispersed Media (PDM 2004), Apr. 2004, English, Lyon, International conference

  Poster presentation


• 超臨界二酸化炭素を重合媒体とするシード重合による複合高分子微粒子の合成とその異相構造

  大久保 政芳, 重松 淳二, 南 秀人, 藤井 秀司

  第13回高分子ミクロスフェア討論会, 2004, Japanese, 不明, 不明, Domestic conference

  Oral presentation


• 単中空高分子微粒子のシェル層形成に及ぼす乳化剤の影響

  大久保 政芳, 南 秀人, 小林 博

  第50回高分子研究発表会, 2004, Japanese, 不明, 神戸, Domestic conference

  Oral presentation


• 水媒体不均一系制御／リビングラジカル重合法を用いたブロックコポリマー微粒子の合成における銅粉及び重合温度の影響

  香川 靖之, 大久保 政芳, 南 秀人

  第13回高分子ミクロスフェア討論会, 2004, Japanese, 不明, 不明, Domestic conference

  Oral presentation


• 水媒体不均一系制御/リビングラジカル重合による異相構造を有する高分子微粒子の合成

  香川 靖之, 大久保 政芳, 南 秀人, 周 健

  第53回高分子学会年次大会, 2004, Japanese, 不明, 不明, Domestic conference

  Oral presentation


• 「中空高分子微粒子の創製とその応用」－インテリジェント化の追求－

  南 秀人

  機能分子化学教室 新化学セミナー（第16回）, 2004, Japanese, 不明, 不明, Domestic conference

  Oral presentation


• ミニエマルション重合法による磁性高分子微粒子の合成

  南 秀人, 大久保 政芳, 庵原 直也

  第13回高分子ミクロスフェア討論会, 2004, Japanese, 不明, 不明, Domestic conference

  Oral presentation


• ミクロンサイズの単分散な中高分子微粒子の合成

  南 秀人

  第53回高分子学会年次大会, 2004, Japanese, 不明, 不明, Domestic conference

  Invited oral presentation


• Production of cured epoxy resin particles having one hollow by polyaddition reaction

  MINAMI Hideto, OSHIMA Yoshiaki, OKUBO Masayoshi

  International Symposium on Polymers in Dispersed Media, 2004, English, 不明, 不明, International conference

  Oral presentation


• Preparation of block copolymer particles by two-step atom transfer radical polymerization in aquious medium

  MINAMI Hideto, OSHIMA Yoshiaki, OKUBO Masayoshi

  International Symposium on Polymers in Dispersed Media, 2004, English, 不明, 不明, International conference

  Oral presentation


• Influence of Emulsifier on Shell Formation of Hollow Polymer Particles by SAPSeP Method

  MINAMI Hideto, OKUBO Masayoshi, KOBAYAHI Hiroshi

  Asia Polymer Symposium(APOSYM/2004), 2004, English, 不明, 不明, International conference

  Oral presentation


• 軟X線顕微鏡を利用した多層構造を有する複合高分子微粒子の観察

  大久保 政芳, 竹厚 流, ADAM P Hitchcock, ARAKI Tohru, HARALD D H Stover, 斎藤 直彦, 南 秀人

  第52回高分子学会年次大会, 2003, Japanese, 高分子学会, 山口大学, Domestic conference

  Oral presentation


• 超臨界二酸化炭素媒体中でのアクリロニトリルーブタジエン共重合体粒子の合成

  大久保 政芳, 藤井 秀司, 前中 寛, 南 秀人, 長谷川 純

  第52回高分子学会年次大会, 2003, Japanese, 高分子学会, 山口大学, Domestic conference

  Oral presentation


• 重付加反応による中空高分子微粒子の合成

  大久保 政芳, 南 秀人, 大島 由照, 金森 博之

  第49回高分子研究発表会, 2003, Japanese, 高分子学会関西支部, 兵庫県民会館, Domestic conference

  Oral presentation


• 可変形状を有するミクロンサイズの単分散な中空粒子の作製

  大久保 政芳, 南 秀人, 森川 圭介

  第12回ポリマー材料フォーラム(2003), 2003, Japanese, 高分子学会, 千里ライフサイエンスセンター, Domestic conference

  Oral presentation


• へこみを有するポリスチレン/ポリメタクリル酸メチル複合微粒子の異相構造

  大久保 政芳, 斎藤 直彦, 竹厚 流, 南 秀人

  第41回日本接着学会年次大会, 2003, Japanese, 日本接着学会, 関西大学, Domestic conference

  Oral presentation


• サブミクロンサイズの単中空橋架け高分子微粒子の合成

  大久保 政芳, 南 秀人, 庵原 直也

  第49回高分子研究発表会, 2003, Japanese, 高分子学会関西支部, 兵庫県民会館, Domestic conference

  Oral presentation


• Various Factors Affecting on the Production of PS/PBMA Composite Particles having Hamburger-like Morphology by Seeded Polymerization

  OKUBO Masayoshi, MINAMI Hideto, YONEHARA H, KURINO T

  Gordon Research Conference, 2003, English, 未記入, 未記入, International conference

  Oral presentation


• Production of Poly(Methyl Methacrylate) Particles by Dispersion Polymerization in the Presence of Trimethylsiloxy Terminated Poly(Dimethylsiloxane) in Supercritical Carbon Dioxide

  FUJII Shuuji, MINAMI Hideto, OKUBO Masayoshi

  Gordon Research Conference, 2003, English, 未記入, 未記入, International conference

  Oral presentation

• 日本ゴム協会


• International Polymer Colloid Group


• 近畿化学協会


• 色材協会


• 日本接着学会


• 日本化学会


• 高分子学会

• 微細多孔質セルロース中空粒子の創製と高機能化

  鈴木 登代子, 南 秀人

  日本学術振興会, 科学研究費助成事業, 基盤研究(C), 神戸大学, 01 Apr. 2020 - 31 Mar. 2023

  本研究では，一つのカプセル材で水溶性／油溶性物質どちらも内包可能な新規なカプセル材料の創出を目的に，セルロース粒子に特に中空構造の導入を目指している。初年度は，特に中空構造を有するセルロース粒子の作製法の確立を目指した。２年度である今年度は，微細構造をカプセル壁に有したセルロース中空粒子作製に取り組み，セルロースの析出挙動について検討を行った。 1. セルロースの析出挙動：ILとDMFからなるセルロース懸濁滴（媒体はヘキサン）を用いて，すべての溶剤を混和する1-ブタノールと，ILだけはほとんど溶解しないアセトンをセルロース析出溶媒として用いた。ILとDMFがそれらと混和すると同時に，セルロースが析出し微細構造を形成する。これまで電子顕微鏡にて観察してきたセルロース粒子は，表面に膜を張っていたが，薄膜形成がセルロース析出時なのか，乾燥時なのかはっきりしていなかった。本検討により，膜形成が析出時であることが明らかとなった。 2. セルロースの化学修飾（フッ素成分の導入）：無水メタクリル酸と多孔質セルロース粒子のヒドロキシ基を反応させることで、メタクリロイル基が導入されたセルロース粒子を作製し，次に含フッ素チオールとのチオール・エン反応を実施し、フッ素化セルロース粒子を作製した。FT-IR やEDXを用いて，メタクリロイル基やフッ素基の導入を確認した。また，2段階の修飾反応過程での微細構造の消失を懸念したが，凍結乾燥後の未修飾の微細セルロース粒子の比表面積は140 m2/g程度であったのに対し，同程度を維持していた。微細構造は乾燥にて簡単に破壊され緻密粒子となるが，興味深いことに，フッ素化セルロース粒子は自然乾燥においても100m2/g程度の高い比表面積を保持していた。接触角測定でも強い疎水性を示した。


• 難治癌バイオマーカー同定のためのエクソソーム自動センシングアレイシステムの開発

  竹内 俊文, 南 秀人, 八代 正和, 田和 圭子, 砂山 博文

  日本学術振興会, 科学研究費助成事業, 基盤研究(A), 神戸大学, 01 Apr. 2019 - 31 Mar. 2023


• 高分子間水素結合を利用した微粒子構造体の創成

  南 秀人

  科学研究費補助金／基盤研究(B), Apr. 2017 - Mar. 2020, Principal investigator

  Competitive research funding


• Development of Controlled/Living Radical Polymerization in Aqueous Dispersed Systems and Synthesis of Functional Polymer Particles

  Okubo Masayoshi, MINAMI Hideto, SUZUKI Toyoko, CHAIYASAT Amorn, CHAIYASAT Preeyaporn

  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Kobe University, 01 Apr. 2013 - 31 Mar. 2018

  We have tried to apply controlled/living radical polymerization (CLRP), which has been so far mainly developed in homogeneous systems, to aqueous dispersed systems and gotten better harvests than expected. Especially, development of emulsifier-free emulsion polymerization, synthesis of high molecular weight (>10e6), monodisperse polystyrene particles, Syntheses of Janus type nonspherical polymer particles by applying CLRP at the limited locus of polymerization at a particle surface, high performance heat storage microcapsule particles, micrometer-size hydrophilic polymer particles without submicrometer-size byproduct particles, and polymer particles having biosensor functionality have been successfully conducted. These results will contribute to overcoming the long-standing problem and creation of novel functional polymer particles.


• Preparation of polymer particles having changeable properties and control of colloidal structure

  MINAMI Hideto

  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), Grant-in-Aid for Scientific Research (B), Kobe University, 01 Apr. 2014 - 31 Mar. 2017

  Seeded dispersion polymerization of ionic liquid monomer was carried out in the presence of poly(methylmethacrylate) (PMMA) as seed and composite particles with poly(ionic liquid) (PIL) were obtained. Moreover, we showed that anion exchange of the composite particles can be used to modify the properties of only the PIL component of the composite particles. PIL particles with a single-hollow are also prepared by suspension polymerization from monomer droplets consisting of the ionic liquid monomer, ethylene glycol dimethacrylate, and n-butyl acetate. The obtained particles can be changed from hydrophobic to hydrophilic by anion exchange. Moreover, Janus particles with two hemispheres having different stabilizers, a polystyrene (PS) phase stabilized by poly(acrylic acid) and a PMMA phase stabilized by poly(vinyl pyrrolidone), were able to be synthesized. The facile formation of the colloidal chains via hydrogen bonding interaction between different stabilizers were demonstrated.

  Competitive research funding


• 機能可変粒子の創製とそれを用いた微粒子構造体の制御

  南 秀人

  科学研究費補助金／基盤研究(B), Apr. 2014 - Mar. 2017, Principal investigator

  Competitive research funding


• 機能可変粒子の創製とそれを用いた微粒子構造体の制御（国際共同研究強化）

  南 秀人

  学術研究助成基金助成金／国際共同研究加速基金(国際共同研究強化), 2016 - 2017, Principal investigator

  Competitive research funding


• 刺激応答性フリースタンディングゲル粒子の創製

  南 秀人

  科学研究費補助金／萌芽研究, Apr. 2012 - Mar. 2014, Principal investigator

  Competitive research funding


• A-STEP「高次構造セルロース微粒子材料の創成とその物性評価」

  南 秀人

  研究成果最適展開支援プログラム フィージビリティスタディステージ 探索タイプ, 2013, Principal investigator

  Competitive research funding


• イオン液体を利用した高分子微粒子機能化法の確立とその応用

  南 秀人

  科学研究費補助金／基盤研究(B), 2011, Principal investigator

  Competitive research funding


• 異形微粒子創製法の開発と応用新展開

  大久保 政芳

  科学研究費補助金／基盤研究(A), 2010

  Competitive research funding


• イオン液体をカプセル化した自立型感温性高分子微粒子材料の開発

  南 秀人

  科学研究費補助金／挑戦的萌芽研究, 2009, Principal investigator

  Competitive research funding


• 省エネルギー熱輸送システム用蓄熱材包含中空粒子の創製

  大久保 政芳

  科学研究費補助金／萌芽研究, 2008

  Competitive research funding


• イオン液体中での機能性微粒子の創製

  南 秀人

  科学研究費補助金／若手研究(B), 2007, Principal investigator

  Competitive research funding


• 超臨界ＣＯ勒流体を媒体とする複合高分子微粒子合成法の創製

  大久保 政芳

  科学研究費補助金／萌芽研究, 2005

  Competitive research funding


• 自己組織化法によるカプセル微粒子の創製とその応用

  大久保 政芳

  科学研究費補助金／基盤研究(A), 2005

  Competitive research funding


• 自己組織化中空形成法に基づく重付加反応を利用した中空高分子微粒子創製法の開発

  南 秀人

  科学研究費補助金／若手研究(B), 2005, Principal investigator

  Competitive research funding


• Preparation of hollow polymer particles encapsulating functional substance and its application

  OKUBO Masayoshi, MINAMI Hideto, SUZUKI Toyoko

  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (A), Kobe University, 2002 - 2004

  Polymer particles with hollow structures have gotten a lot of attention in many industrial fields. Such particles are used as microcapsules, weight-saving or thermal insulation agents, and are applied to hiding or opacifying agents in coating and molding compositions because of their high light-scattering ability. We had succeeded in preparing micron-sized, monodisperse, crosslinking polymer particles having a single hollow at the center by seeded polymerization. Similar hollow polymer particles were produced by suspension polymerization for divinylbenzene (DVB)/toluene droplets dissolving polystyrene though they were polydisperse. The formation of the hollow structure is based on the self- assembling of phase separated polymer at the interface of the droplet. The method is named the Self-assembling of Phase Separated Polymer (SaPSeP) method. In this research, in order to clarify the formation mechanism of hollow particles by the SaPSeP method in more detail, the effects of phase separation of PDVB in the droplets, viscosity within the droplet and its size on the formation of the hollow structure were discussed. The phase separation in the early stage was required point for the formation of the hollow structure. Since the viscosity in the droplet is low at the low conversion, the PDVB can move and adsorb at the interface of the droplet. The mobility of PDVB microgels after the phase separation in polymerizing droplet was important factor for the formation of the hollow structure. The SaPSeP method was developed to produce composite particles encapsulating hinokitiol or magnetite. Moreover, the method was applied to the polyaddition reaction in a suspension system. The polyaddition reaction system satisfied the required conditions for the preparation of hollow particle by the SaPSeP method. In actual, cured epoxy resin particles having one hollow at the center were successfully prepared after evaporation of toluene.


• 水媒体系化学酸化重合法による機能性高分子微粒子の創製

  南 秀人

  日本学術振興会, 科学研究費助成事業, 若手研究(B), 神戸大学, 2002 - 2003

  当研究室では一貫して機能性高分子微粒子の合成とその応用に関する研究に取り組んでいるが,そのほとんどがビニルモノマーを対象とし,乳化重合,分散重合,懸濁重合を駆使して行ってきた。さらに,非ビニルモノマーに着目し,すでにサブミクロンサイズのポリスチレン微粒子の水分散系で非ビニルモノマーであるグルタルアルデヒドのアルドール縮合重合を行い,粒子表面にアルデヒド基を有する高分子微粒子の新合成法を確立し,国内外で高い評価を受けている。本研究の目的はアニリンなどの非ビニルモノマー水媒体化学酸化重合法により新しい機能性高分子微粒子合成法を確立することである。さらに,エポキシ基,イソシアネート基などを有する非ビニルモノマーの重付加反応による機能性微粒子の合成も取り上げ,非ビニルモノマーの水媒体における機能性高分子微粒子の創製を目指す。 本年度は,非ビニルモノマーとしてエポキシ樹脂とアミンによる重付加反応を利用した機能性微粒子の合成を検討した。具体的には,当研究室で先に提起している相分離を利用した中空化技術をエポキシ樹脂とアミンに適用し,エポキシ樹脂による非ビニル中空粒子の合成に成功した。これらの結果は,水媒体系における非ビニルモノマーによる機能性高分子微粒子の合成法に関して重要な結果であり,現在論文作成中である。さらに,昨年度の検討課題である化学酸化シード分散重合から作製された導電性を有するミクロンサイズの単分散な中空粒子の合成法に関しても,まもなく投稿予定である。


• 磁性を有するミクロンサイズの単分散高分子微粒子の創製

  大久保 政芳, 鈴木 登代子, 南 秀人

  日本学術振興会, 科学研究費助成事業, 萌芽研究, 神戸大学, 2001 - 2002

  本研究では申請者らが既に合成に成功しているミクロンサイズで単分散な中空高分子微粒子合成技術をもとに,磁性体が強固な高分子でカプセル化され,かつ単分散であるという磁性体含有機能性複合微粒子の合成方法を確立することを目指している。昨年度は,申請者らが独自に提起している動的膨潤法(DSM)と呼称する新規なモノマー吸収法を用いてミクロンサイズの単分散滴を作製し,そのシード重合を行うことにより得られるミクロンサイズの単分散中空高分子微粒子を用い,ペンタカルボニル鉄を中空部に含有させて200℃で熱処理を行うことにより,磁性粒子の合成を支持する結果が得られている。 本年度は,得られた磁性を有する複合粒子の詳細な解析を行った。具体的には内部異相構造の解明には超薄切片を作製し,電子顕微鏡を用いて観察した結果,すべての粒子の中空粒子内壁に処理前には観察されなかったコントラストの高い部分が観察され,X線回折及びX線マイクロアナライザーによる元素分析の結果,磁性体であるFe_3O_4であることがわかった。さらに熱重量分析の結果より,粒子重量の49%を占める量の磁性体を含有していることが明らかになった。また,得られた磁性粒子表面にが多量の残存ビニル基を有していることを利用し,濃硫酸で処理することにより粒子表面に硫酸基を導入することを検討した。その結果,X線光電子分光法,及び等温滴定型熱量計により硫酸基が粒子表面上に0.7μmol/m^2と高効率に導入されていることを明らかにした。


• Development of Production of Functional Polymer Particles in Supercritical Carbon Dioxide

  OKUBO Masayoshi, SUZUKI Toyoko, MINAMI Hideto, MATSUO Shigenobu

  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Kobe University, 2000 - 2001

  Recently, in addition to water, there have been increasing interests in supercritical carbon dioxide (scCO_2) as environmentally favorable media. The use of scCO_2 as medium for polymerizations has several potential advantages : low cost, low toxicily, eases of medium removal and recycling, and marked variations of solubility power, viscosity and polarity by relatively small changes in temperature and pressure without altering medium composition. The papers describing the dispersion polymerization of vinyl monomers such as methyl methacrylate (MMA) and styrene in scCO_2 have been published in the past eight years. Some fluorinated polymers and poly(dimethylsiloxane) (PDMS)-based polymers have been identified as being soluble in CO_2 or CO_2-philic and have been used as colloidal stabilizers, and there has been increasing interest on the colloidal stabilizers which are effective in scCO_2. In general, PDMS-based polymers may have advantages over fluorinated polymers from the viewpoints that PDMS-based polymers are much less expensive and their solubility in conventional organic solvents makes the characterization of the products obtained easy. In this research, PMMA particles could be produced by dispersion polymerization of MMA in scCO_2 using PDMS-based azoinitiator as inistab (initiator + stabilizer). Production of PMMA particles by the dispersion polymerization of MMA in scCO_2 in the presence of amino propyl terminated PDMS as colloidal stabilizer was also succeeded. Moreover, polydivinylbiphenyl particles were produced by precipitation polymerization of divinylbiphenyl without any stabilizer in scCO_2 at ca. 30 MPa for 24 h at 65℃. The effects of initiation rate of polymerization on the conversion, the fluidity of powder, the degree of coagulation/ the amount of low molecular weight by-products, and the amount of vinyl groups in the particles were examined.

• 粒子状重合体の製造方法(アメリカ)

  MINAMI HIDETO

  15/666006, 09 Feb. 2016, 大学長, 10138309, 27 Nov. 2018

  Patent right


• イオン液体ポリマー含有複合微粒子およびその製造方法

  MINAMI HIDETO

  特願2012-270491, 11 Dec. 2012, 大学長, 特許6069784, 13 Jan. 2017

  Patent right


• 窒化ホウ素被覆高分子樹脂及びその製造方法

  MINAMI HIDETO

  特願2012-134647, 14 Jun. 2012, 大学長, 特許6024228, 21 Oct. 2016

  Patent right


• ポリイソシアネート構成成分内包微粒子、その製造方法、及び１液型ポリウレタン接着剤組成物

  MINAMI HIDETO, SUZUKI TOYOKO, OKUBO MASAYOSHI

  特願2006-041682, 17 Feb. 2006, 大学長, 特許4899047, 13 Jan. 2012

  Patent right


• ２領域微粒子の製造方法

  MINAMI HIDETO, OKUBO MASAYOSHI

  特願2005-041418, 17 Feb. 2005, 大学長, 特許4759726, 17 Jun. 2011

  Patent right


• 超臨界炭酸ガス中での高分子微粒子の製造方法

  OKUBO MASAYOSHI, MINAMI HIDETO

  特願2000-382295, 15 Dec. 2000, 大学長, 特許4370390, 11 Sep. 2009

  Patent right


• 磁性中空微粒子及びその製造方法

  OKUBO MASAYOSHI, MINAMI HIDETO

  特願2004-077161, 18 Feb. 2004, 大学長, 特許4355806, 14 Aug. 2009

  Patent right


• 開口微粒子及びその製造方法

  OKUBO MASAYOSHI, MINAMI HIDETO

  特願2004-77160, 18 Feb. 2004, 大学長, 特許4317941, 05 Jun. 2009

  Patent right