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Precise synthesis of architectural polymers with luminescent units at polymer connection points and evaluation of the correlation between structure and physical properties

Research Project

Project/Area Number 19K15619
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 35010:Polymer chemistry-related
Research InstitutionTokyo Institute of Technology

Principal Investigator

Goseki Raita  東京工業大学, 物質理工学院, 助教 (20592215)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsアニオン重合 / 発光性分子 / ブロック共重合体 / 特殊構造高分子 / 星型ポリマー / 精密合成 / ミクロ相分離 / 1,1-ジフェニルエチレン誘導体 / 相分離 / 熱可塑性エラストマー / マクロ相分離 / 特異点
Outline of Research at the Start

本研究では、異種または同種の高分子結合界面を蛍光発光により静的な状態から動的な変化まで定量的な追跡を可能とする分子設計の確立を主目的とする。特に、非対称ABA’型トリブロック共重合体や星型エラストマーの特定の高分子結合部位のみに(凝集誘起)発光性分子を導入し、高分子構造と材料特性との相関関係を明らかにする。
これらの分子はアニオン重合法をベースに合成し、相分離構造や光学・力学特性ならびに力学応力印加時の光学特性変化などを多角的に評価する。発光特性を示す分子は必要に応じて設計や合成のステージにフィードバックし、熱可塑性エラストマーやポリマーアロイ、有機・無機ハイブリッド材料などへの展開を目指す。

Outline of Final Research Achievements

A 1,1-diphenylethylene (DPE) analog based on a carbazole skeleton showing luminesence property in solution and a DPE derivative having tetraphenylethene skeleton exhibiting aggregation-induced luminescence were designed and synthesized, respectively. By clarifying the electrophilicity of these compounds and the nucleophilicity of the resulting anionic species, it was found that a series of architectural polymers (block copolymers, star polymers, and end-functionalized polymers) can be precisely synthesized. In addition, it was also found that the polymer synthesized from each compound showed luminescence property in a solution state or a solid (film) state, as expected.

Academic Significance and Societal Importance of the Research Achievements

同種または異種高分子の結合点のみに発光性分子を導入する方法を確立できたことは、その他の魅力的な機能性団を導入できることにも繋がり、学術的な更なる広がりが大いに期待できる。また、一分子のみの導入にも関わらず発光特性を強く示したことから、材料特性に直結する異種界面構造を発光特性により可視化できることが期待され、工業的な材料開発設計指針に繋がる可能性を示す研究結果となった。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (10 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (6 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Journal Article] Living Anionic Polymerization of 4-Halostyrenes2021

    • Author(s)
      Raita Goseki, Taro Koizumi, Reina Kurakake, Satoshi Uchida, Takashi Ishizone
    • Journal Title

      Macromolecules

      Volume: 54 Issue: 3 Pages: 1489-1498

    • DOI

      10.1021/acs.macromol.0c02417

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Allylidene monomers: anionically polymerizable 1,1-disubstituted 1,3-diene derivatives2020

    • Author(s)
      Satoshi Uchida, Kota Togii, Shogo Miyai, Raita Goseki, Takashi Ishizone
    • Journal Title

      Macromolecules

      Volume: 53 Issue: 22 Pages: 10107-10116

    • DOI

      10.1021/acs.macromol.0c02103

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Surface Characterization of Amphiphilic Block Copolymers Possessing Polyisoprene and Poly[tri(ethylene glycol) methacrylate] Segments and the Effect of Side Chain w-Function on Surface Energy,2020

    • Author(s)
      Raita Goseki, Sho Miyao, Satoshi Uchida, Hideyuki Yokoyama, Kohzo Ito, Takashi Ishizone
    • Journal Title

      Polymer

      Volume: 190 Pages: 122257-122257

    • DOI

      10.1016/j.polymer.2020.122257

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Synthesis of a well-defined alternating copolymer of 1,1-diphenylethylene and tert-butyldimethyl- silyloxymethyl substituted styrene by anionic copolymerization: toward tailored graft copolymers with controlled side chain densities2019

    • Author(s)
      Raita Goseki, Fan Zhang, Kazuki Takahata, Satoshi Uchid and Takashi Ishizone
    • Journal Title

      Polymer Chemistry

      Volume: 10 Issue: 47 Pages: 6413-6422

    • DOI

      10.1039/c9py01161g

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 発光性分子を鎖末端または鎖中心に導入した高分子の精密合成2021

    • Author(s)
      後関 頼太、町田 和規、石曽根 隆
    • Organizer
      2021年繊維学会年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 鎖末端または鎖中心に発光性分子を有する高分子の精密合成2020

    • Author(s)
      後関 頼太、町田 和規、石曽根 隆
    • Organizer
      第69回高分子討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Synthesis of Architectural Polymers and Functionalized Polymers based on the Recent Developed 1,1-Diphenylethylene Chemistry2019

    • Author(s)
      Raita Goseki
    • Organizer
      The 2nd International Conference of Polymeric and Organic Materials Yamagata University (2nd IPOMY), Dec. 17-20, 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Synthesis of Well-defined Alternating Copolymer of 1,1-Diphenylethylene with Styrene having Bulky Substituent through Anionic Copolymerization2019

    • Author(s)
      Raita Goseki
    • Organizer
      Korea-Japan Joint Symposium on Polymer Science 2019, Sep. 18-20, 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Synthesis of Well-defined Alternating Copolymer of 1,1-Diphenylethylene with Styrene having Bulky Substituent through Anionic Copolymerization,2019

    • Author(s)
      Raita Goseki
    • Organizer
      IUPAC INTERNATIONAL SYMPOSIUM ON IONIC POLYMERIZATION; IP ’19, Sep. 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] α-フェニル-N-ビニルカルバゾールのアニオン付加反応2019

    • Author(s)
      町田 和規, 後関 頼太, 石曽根 隆
    • Organizer
      第68回高分子学会年次大会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2022-01-27  

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