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NAKAMOTO Reina
Graduate School of Engineering / Department of Chemical Science and Engineering
Assistant Professor

Researcher basic information

■ Research Keyword
  • 高分子コロイド化学
■ Research Areas
  • Nanotechnology/Materials / Polymer chemistry

Research activity information

■ Award
  • Mar. 2026 神戸大学工学振興会, 神戸大学工学振興会理事長賞
    中本礼奈

  • Oct. 2025 第23回高分子ミクロスフェア討論会, 学生最優秀発表賞, 架橋構造の制御による高弾性シリコーン粒子の作製
    中本礼奈, 西俵汰, 勝部伸哉, 鈴木望, 鈴木登代子, 南秀人

  • May 2025 高分子学会, 高分子学会優秀オンデマンド発表賞, 高弾性シリコーン粒子の作製
    中本礼奈, 西俵汰, 石立新太朗, 勝部伸哉, 鈴木望, 鈴木登代子, 南秀人

■ Paper
  • 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)
    [Refereed]
    Scientific journal

  • 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, 19(1) (1), English
    [Refereed]
    Scientific journal

  • Reina Nakamoto, Yuya Takeuchi, Yohei Okubo, Keisuke Fujita, Toyoko Suzuki, Hideto Minami
    Abstract Micrometer‐sized monodisperse silicone droplets are prepared through a sol–gel process involving 3‐methacryloxypropylmethyldimethoxysilane (MPDS) at room temperature for 1.5 h in the presence of NH3 as a catalyst. The size of the obtained droplets is controlled by changing the stabilizer concentration and solvent polarity. However, the obtained droplets have not maintained their particulate shape in the dry state due to the absence of a cross‐linking structure. Thus, radical polymerization is performed on the obtained silicone droplets at 70 °C for 2 h; consequently, spherical particles with high monodispersity are observed in the dry state, indicating the presence of a cross‐linked structure. Microcompression tests are conducted to evaluate the mechanical properties of the silicone particles. Initially, the recovery ratio (elasticity) is not high because the molecular weight of the silicone particles is low, ≈600, due to MPDS cyclization (MPDS trimer). Anionic ring‐opening polymerization is therefore performed to extend the molecular weight of the MPDS trimer. Benzyldodecyldimethylammonium bromide and tetrakis[tris(dimethylamino)phosphoranylidenamino]phosphonium chloride are used as catalysts for anionic ring‐opening polymerization. These catalysts increased the molecular weight to ≈2000 and 7600, respectively. Furthermore, the silicone particles obtained through anion ring‐opening polymerization and radical polymerization have high recovery ratios (elasticity).
    Lead, Wiley, Dec. 2024, Macromolecular Reaction Engineering, 19(1) (1), English
    [Refereed]
    Scientific journal

■ Lectures, oral presentations, etc.
  • Preparation of monodisperse cross-linked silicone particles and improvement of their elasticity
    Reina Nakamoto, Shinya Katsube, Takuya Matsumoto, Nozomu Suzuki, Toyoko Suzuki, Hideto Minami
    The 106th CSJ Annual Meeting (2026), Mar. 2026, English
    Oral presentation

  • 架橋構造の制御による⾼弾性シリコーン粒⼦の作製
    中本 礼奈, 西 俵汰, 勝部 伸哉, 鈴木 望, 鈴木 登代子, 南 秀人
    第23回高分子ミクロスフェア討論会発表会, Oct. 2025
    Oral presentation

  • 分子構造制御によるシリコーン粒子の高弾性化
    中本 礼奈, 西 俵汰, 竹内 裕也, 勝部 伸哉, 鈴木 望, 鈴木 登代子, 南 秀人
    第74回高分子討論会, Sep. 2025
    Oral presentation

  • Preparation of elastic silicone particles
    Reina Nakamoto, Hyota Nishi, Shintaro Ishidate, Shinya Katsube, Nozomu Suzuki, Toyoko Suzuki, Hideto Minami
    The International Polymer Colloids Group (IPCG) conference 2025, Jun. 2025
    Poster presentation

  • 高弾性シリコーン粒子の合成
    中本 礼奈, 西 俵汰, 石立 新太朗, 勝部 伸哉, 鈴木 望, 鈴木 登代子, 南 秀人
    第74回高分子学会年次大会, May 2025
    Others

  • 焼成による単分散シリコンカーバイド粒子の作製
    中本 礼奈, 西 俵汰, 石立 新太朗, 鈴木 望, 鈴木 登代子, 南 秀人
    第73回高分子討論会, Sep. 2024
    Poster presentation

  • 単分散シリコンカーバイド粒子の合成
    中本礼奈, 西俵汰, 石立新太朗, 鈴木望, 鈴木登代子, 南秀人
    第70回高分子研究発表会（神戸）, Jul. 2024
    Oral presentation

■ Affiliated Academic Society
  • 日本ゴム協会
    Jun. 2026 - Present

  • 日本接着学会
    Apr. 2026 - Present

  • 日本化学会
    Nov. 2025 - Present

  • 高分子学会
    Apr. 2024 - Present

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