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Development of ABC Triblock Copolymers with Reversible Topology Transformation between Branched and Linear Polymers

Research Project

Project/Area Number 18H02018
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 35010:Polymer chemistry-related
Research InstitutionTokyo Institute of Technology

Principal Investigator

TAKATA Toshikazu  東京工業大学, 物質理工学院, 特任教授 (40179445)

Co-Investigator(Kenkyū-buntansha) 中薗 和子  東京工業大学, 物質理工学院, 准教授 (30467021)
打田 聖  東京工業大学, 物質理工学院, 講師 (70343168)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
Keywordsトポロジー変換 / ロタキサン / ブロックポリマー / トポロジー効果 / ロタキサン架橋高分子 / ブロック共重合体
Outline of Final Research Achievements

In order to clarify the significance of the dynamic structural properties of the mechanical bonding of rotaxane at the cross-linking point of the polymer, we incorporated functional groups that exhibit mechanochromic properties into the rotaxane cross-linked polymer. And we found that the cross-linking of rotaxane does indeed reduce the stress on the covalent bond and suppresses the bond breaking. We also developed a rotaxane-linked triblock copolymer whose topology can be transformed by moving the mechanical bond of rotaxane moiety. Furthermore, we demonstrated that topology-transformable triblock copolymers exhibit different microphase-separated structures depending on their topology and change their macroscopic mechanical properties.

Academic Significance and Societal Importance of the Research Achievements

ロタキサン架橋された高分子架橋体は力学的な強靭であることから注目されている。しかし詳細なメカニズムは不明な点も多く、効果的なロタキサン架橋の設計に向けた、ロタキサンの機械結合架橋による強靭化の本質の理解が必要である。本研究ではメカノクロモフォアを組み合わせることでロタキサン架橋が架橋点へ集中する応力を効果的に分散していることを示すことに成功した。また、ロタキサン構造で異種高分子を連結したトリブロック共重合体は、その連結点を移動させることでミクロ相分離構造の変換が可能であることを示した。これらの成果は新しいロタキサンを利用した刺激応答性材料の創出につながる重要な成果である。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (23 results)

All 2021 2020 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (19 results) (of which Int'l Joint Research: 3 results,  Invited: 19 results)

  • [Journal Article] Segmented polyurethanes containing movable rotaxane units on the main chain: Synthesis, structure, and mechanical properties2021

    • Author(s)
      Jun Sawada,Hiromitsu Sogawa, Hironori Marubayashi, Shunichi Nojima,Hideyuki Otsuka,Ken Nakajima,Yousuke Akae, Toshikazu takata
    • Journal Title

      Polymer

      Volume: 213 Pages: 123291-123291

    • DOI

      10.1016/j.polymer.2020.123291

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Switchable Polymer Materials Controlled by Rotaxane Macromolecular Switches2020

    • Author(s)
      Toshikazu Takata
    • Journal Title

      ACS Central Science

      Volume: 6 Issue: 2 Pages: 129-143

    • DOI

      10.1021/acscentsci.0c00002

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Visualization of the slide-ring effect: a study on movable cross-linking points using mechanochromism2020

    • Author(s)
      Lu Yi、Aoki Daisuke、Sawada Jun、Kosuge Takahiro、Sogawa Hiromitsu、Otsuka Hideyuki、Takata Toshikazu
    • Journal Title

      Chemical Communications

      Volume: 56 Issue: 23 Pages: 3361-3364

    • DOI

      10.1039/c9cc09452k

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Main Chain-Type Polyrotaxanes Derived from Cyclodextrin-Based Pseudo[3]rotaxane Diamine and Macromolecular Diisocyanate: Synthesis, Modification, and Characterization2020

    • Author(s)
      Akae Yosuke、Iijima Keisuke、Tanaka Mami、Tarao Toshiyuki、Takata Toshikazu
    • Journal Title

      Macromolecules

      Volume: 53 Issue: 6 Pages: 2169-2176

    • DOI

      10.1021/acs.macromol.0c00215

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] 可逆的高分子トポロジー変換を駆動力とする新規刺激応答高分子2020

    • Author(s)
      高田十志和
    • Organizer
      第20回中国四国地区高分子材料研究会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 新しい応答機能をもつ刺激応答高分子をつくる2020

    • Author(s)
      高田十志和
    • Organizer
      高分子学会関東支部高分子基礎講座
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 新しい刺激応答高分子の合成と機能2020

    • Author(s)
      高田十志和
    • Organizer
      高分子学会北海道支部講演会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Toughening of Elastomers by Rotaxane Cross-Linking2019

    • Author(s)
      Toshikazu Takata
    • Organizer
      RubberCon2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 可変な分子トポロジーを活かす刺激応答材料設計2019

    • Author(s)
      高田十志和
    • Organizer
      大饗シンポジウム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 分子スイッチを活用する高分子合成と物性制御2019

    • Author(s)
      高田十志和
    • Organizer
      関東高分子若手研究会 2019春の講演会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 分子トポロジーを鍵とする新しい刺激応答高分子2019

    • Author(s)
      高田十志和
    • Organizer
      2019 年度TREMS研究交流会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] インターロック分子の化学と動的分子システム2019

    • Author(s)
      高田十志和
    • Organizer
      第30回基礎有機化学討論会(基有機化学会賞受賞講演)
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 新しい応答機能をもつ刺激応答高分子をつくる2019

    • Author(s)
      高田十志和
    • Organizer
      高分子学会関東支部主催若手社員のための高分子基礎講座
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Stimuli-Responsive Polymers Driven by Reversible Polymer Topology Transformation2019

    • Author(s)
      Toshikazu Takata
    • Organizer
      11th Anniversary of Federation of Asian Polymer Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] インターロック分子の化学と動的分子システム2019

    • Author(s)
      高田十志和
    • Organizer
      北海道大学理学研究科講演
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Rotaxane Chemistry Directed toward Unique Catalysts and Materials2019

    • Author(s)
      高田十志和
    • Organizer
      Workshop on Soft and Nano Materials Orchestrated with Wisdom from Japan 2019
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Linear Cyclic and Linear - Star Polymer Topology Transformation2019

    • Author(s)
      高田十志和
    • Organizer
      Polymers Meet Topology- International Conference -
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Smart Stimuli-Responsive Materials Driven by Rotaxane Molecular Switch2018

    • Author(s)
      高田十志和
    • Organizer
      Xingda Lecture
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 高分子のトポロジー変化を鍵とする刺激応答材料2018

    • Author(s)
      高田十志和
    • Organizer
      九州大学工学研究院特別シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 小さな分子スイッチで巨大分子や材料を動かす2018

    • Author(s)
      高田十志和
    • Organizer
      有機合成化学協会関東支部ミニシンポジウム湘南2018ー七夕シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] トポロジー変換を鍵とする 刺激応答材料の合成と機能2018

    • Author(s)
      高田十志和
    • Organizer
      北海道大学 フロンティア化学教育研究センター講演会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Rotaxane Chemistry Directed toward Unique Catalysts and Materials2018

    • Author(s)
      高田十志和
    • Organizer
      Department Seminar, Applied Chemistry, National Chiao Tung University
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Stimuli-Responsive Smart Polymers Undertaking Linear - Star or Linear - Cyclic Topology Change2018

    • Author(s)
      高田十志和
    • Organizer
      International Conference on Advanced and Applied Petroleum, Petrochemicals, and Polymers in 2018 (ICAPPP2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2018-04-23   Modified: 2022-01-27  

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