• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Crystallization control using entanglement topology that not able to be realized only by linear polymer

Research Project

Project/Area Number 17K05998
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Polymer/Textile materials
Research InstitutionOkayama University

Principal Investigator

Yamazaki Shinichi  岡山大学, 環境生命科学研究科, 准教授 (40397873)

Co-Investigator(Kenkyū-buntansha) 木村 邦生  岡山大学, 環境生命科学研究科, 教授 (40274013)
新 史紀  岡山大学, 環境生命科学研究科, 助教 (40723268)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords高分子構造・物性
Outline of Final Research Achievements

In this work, we elucidated the crystallization mechanism of polymers with entanglement topology that cannot be realized by linear polymers alone. It is realized the group of entanglement topology that cannot be realized only by linear polymers by using a mixture of cyclic polymers without knot entanglement and linear or star polymers having complicated knot entanglements.
Throughout the entire study period, we preformed the studies on blended systems of cyclic and linear or star polyethylene with different molecular weights.
In-situ observation of the crystallization behavior of the sample under quiescent state and in the flow field was performed by means of polarizing microscopy. We clarified the effect of the entanglement of star-shaped polymer branching points and cyclic and linear chains on the crystallization of the blend system.

Academic Significance and Societal Importance of the Research Achievements

本研究では、直鎖状高分子だけでは実現できない絡み合いトポロジーが結晶化に及ぼす影響を解明し、その成果を新規結晶性高分子材料の開発に展開していく点に高い学術的意義がある。本研究の成果は、従来ブロック化や共重合体化によって高性能化を指向してきたポリオレフィン類に対して発想の転換を迫るものであり、耐熱性や力学的強度、成形加工性などの諸物性がチューニング可能な高性能結晶性高分子材料を創製可能にするものである。用途展開としては、超高強度・高耐熱性繊維やナノコンポジット、配向制御高分子フィルム・膜への応用が考えられ、その波及効果は極めて大きい。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (10 results)

All 2020 2019 2018 2017

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (8 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Molecular weight dependence of the growth rate of spherulite of cyclic poly(ε-caprolactone) polymerized by ring expansion reaction2020

    • Author(s)
      Ono Ryogo、Atarashi Hironori、Yamazaki Shinichi、Kimura Kunio
    • Journal Title

      Polymer

      Volume: 194 Pages: 122403-122403

    • DOI

      10.1016/j.polymer.2020.122403

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Morphology and growth rate of spherulite of cyclic poly(ε-caprolactone) having a triazole group at the closing point2020

    • Author(s)
      Atsushi Shinya、Ono Ryogo、Atarashi Hironori、Yamazaki Shinichi、Kimura Kunio
    • Journal Title

      Polymer

      Volume: - Pages: 122660-122660

    • DOI

      10.1016/j.polymer.2020.122660

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] 閉環部にトリアゾール環を有する環状ポリ(ε-カプロラクトン)のモルフォロジーと球晶成長速度2019

    • Author(s)
      新家 敦史、新 史紀、山崎 慎一、木村 邦生
    • Organizer
      第68回高分子学会年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 環拡大反応を用いて合成した環状ポリ(ε-カプロラクトン)の 球晶成長速度の分子量依存性2019

    • Author(s)
      大野 良悟、新 史紀、山崎 慎一、木村 邦生
    • Organizer
      第68回高分子学会年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 環状と直鎖状ポリエチレンブレンドの延伸結晶化過程から探る絡み合い状態の変化2019

    • Author(s)
      松川 大悟、新 史紀、山崎 慎一、木村 邦生
    • Organizer
      第68回高分子学会年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Molecular weight dependence of growth rate of spherulite of cyclic poly(ε-caprolactone) polymerized by ring expansion reaction2019

    • Author(s)
      Ryogo Ono, Hironori Atarashi, Shinichi Yamazaki, Kunio Kimura
    • Organizer
      International discussion meeting on polymer crystallization 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Morphology and growth rate of spherulite of cyclic poly(ε-caprolactone) having a triazole group at closing point2019

    • Author(s)
      Atsushi Shinya, Hironori Atarashi, Shinichi Yamazaki, Kunio Kimura
    • Organizer
      International discussion meeting on polymer crystallization 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 環状高分子と直鎖状高分子のブレンド系における大変形を伴う流動場での結晶化挙動2018

    • Author(s)
      松川 大悟・山崎 慎一・木村 邦生・新 史紀
    • Organizer
      第33回中国四国地区高分子若手研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] 環状ポリエチレンと星型ポリエチレンのブレンド系における結晶化挙動2018

    • Author(s)
      江田 千紘・新 史紀・山崎 慎一・木村 邦生
    • Organizer
      平成30年度繊維学会秋季研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] 直鎖状ポリエチレンに環状ポリエチレンを添加した系の流動場結晶化に両成分分子量が及ぼす影響2017

    • Author(s)
      齊藤 純希・山崎 慎一・新 史紀・木村 邦生
    • Organizer
      第66回高分子学会年次大会
    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi