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Studies of mechanism for glass transition of nano-sized polymeric materials via nano-chip calorimetry

Research Project

Project/Area Number 16K05907
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Polymer/Textile materials
Research InstitutionUniversity of Fukui

Principal Investigator

Sasaki Takashi  福井大学, 学術研究院工学系部門, 教授 (50242582)

Co-Investigator(Kenkyū-buntansha) 入江 聡  福井大学, 学術研究院工学系部門, 准教授 (90313733)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords高分子 / 熱物性 / ガラス転移 / ナノ材料 / 高分子ナノシェル / ダイナミックス / 高分子構造・物性
Outline of Final Research Achievements

It is known that the thermal and mechanical properties of nano-sized polymeric materials vary significantly with their size, but its origin has not yet been elucidated. In this study, we focus on the phenomena that occur at glass transition temperature (softening point) and proposed a novel model (SCC model) to understand the mechanism of glass transition. We further investigated the thermal properties of various nano-sized polymeric materials via a new technique, nano-chip calorimetry. It was found that the SCC model can provide a qualitative interpretation for the glass transition behaviors of nano materials.

Academic Significance and Societal Importance of the Research Achievements

ナノテクノロジーの進歩とともにプラスチックに代表される高分子物質を用いたナノサイズの材料(微粒子や超薄膜など)は、新素材やナノデバイスの開発に貢献することが期待されている。このような開発においては、ナノ材料に特有の物性を十分に理解することが材料の適応性や安全性の面からも不可欠である。本研究の成果は、表面・界面の効果を新規のモデルに導入することで、高分子ナノ材料の特異な熱的性質が説明できた点はとくに大きな成果であり、その学術的意義は大きい。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (10 results)

All 2019 2018 2017

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results) Presentation (6 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Glass transition at the polystyrene/polyethylene glycol interface observed via contact angle measurements2019

    • Author(s)
      T. Sasaki, K. Hiraki, A. Athirah, K. Matsuta and N. Takeuchi
    • Journal Title

      Polymer Journal

      Volume: 51 Issue: 5 Pages: 481-488

    • DOI

      10.1038/s41428-018-0163-2

    • NAID

      40021935867

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Segmental dynamics of free-standing and supported polymer thin films predicted from a surface-controlled model2019

    • Author(s)
      T. Sasaki, T. Nakane and A. Sato
    • Journal Title

      Polymer

      Volume: 172 Pages: 265-271

    • DOI

      10.1016/j.polymer.2019.04.007

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cooperativity of dynamics in supercooled polymeric materials and its temperature dependence predicted from a surface controlled model2018

    • Author(s)
      Sato Akinori、Sasaki Takashi
    • Journal Title

      European Polymer Journal

      Volume: 99 Pages: 485-494

    • DOI

      10.1016/j.eurpolymj.2018.01.003

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Rapid crystallization and mesophase formation of poly(L-lactic acid) during precipitation from a solution2018

    • Author(s)
      Syazwan Muhammad、Sasaki Takashi
    • Journal Title

      e-Polymers

      Volume: 0 Issue: 4 Pages: 1-7

    • DOI

      10.1515/epoly-2017-0247

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 高分子ダイナミックスにおける協同運動性とその温度依存性の表面制御CRRモデルによる検討2018

    • Author(s)
      佐々木隆、佐藤諒典、中根 樹
    • Organizer
      第67回高分子討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Effects of Substituents on Polymer Glass Transition Dynamics2017

    • Author(s)
      T. Sasaki
    • Organizer
      The EMN Polymer Meeting 2017
    • Place of Presentation
      The Crowne Plaza (Auckland, New Zealand)
    • Year and Date
      2017-03-13
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] AC nano-calorimetry study of the crystallization of poly(L-lactic acid) thin films2017

    • Author(s)
      T. Sasaki, K. Kamiya, S. Katano
    • Organizer
      8th International and 10th Japan-China Joint Symposium on Calorimetry and Thermal Analysis
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] ACナノカロリメトリによるポリL乳酸薄膜の結晶化における界面効果の検証2017

    • Author(s)
      神谷啓太,片野修吾,佐々木隆
    • Organizer
      第66回高分子討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] Mesophase formation and rapid crystallization of poly(L-lactic acid) during precipitation2017

    • Author(s)
      M. Syazwan, T. Sasaki
    • Organizer
      第66回高分子討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] 高分子のガラス転移における協同運動性とフラジリティへの置換基効果2017

    • Author(s)
      佐藤諒典、笹井太一朗、佐々木隆
    • Organizer
      第66回高分子討論会
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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