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Formulation of a dynamically correlated network model and investigations of dynamics in ultrathin polymer films

Research Project

Project/Area Number 20K05615
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 35020:Polymer materials-related
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)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsガラス転移 / 動的相関領域 / シミュレーション / 高分子超薄膜 / 過冷却液体 / 超薄膜
Outline of Research at the Start

過冷却液体の熱物性を左右するガラス転移現象のメカニズム解明は、材料物性分野において重要な研究課題の1つである。とくに近年は、超薄膜などの高分子ナノ材料の特異なガラス転移が注目され、その分子論的な機構解明が望まれている。本研究は、過冷却液体中で運動単位が連なり、ネットワーク状の動的相関領域を形成するという独自の新しい概念に基づいた理論を構築し、その実験的検証を行う。これにより高分子ナノ材料に特有の動的物性の機構解明が大きく進歩すると期待される。

Outline of Final Research Achievements

It is generally known that nano-sized polymeric materials such as ultrathin films, nanoparticles, and nanofibers exhibit characteristic thermal and mechanical properties that are different from those of bulk materials. The purpose of this study is to elucidate the origins of these anomalous properties based on a novel model, dynamically correlated network model that was developed originally. The predictions from the model were revealed to be compatible with experimental data for various materials. Furthermore, the model was arranged to be applied to freestanding ultrathin films, and it was found that the arranged model can predict successfully the thermal properties of ultrathin films.

Academic Significance and Societal Importance of the Research Achievements

ガラス形成材料の熱物性について本研究で構築されたネットワーク状動的相関領域の考えは、今後のソフトマターの基礎物性の学術研究の発展に大きく寄与する。さらに、この考えを超薄膜の熱物性に適用することによって得られた知見は、ナノサイズの高機能性材料の物性研究の発展に大きく貢献すると期待される。これらは将来的には、種々の電子デバイスや医療分野などナノテクノロジーのさまざまな応用展開にもつながる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (15 results)

All 2023 2022 2021 2020

All Journal Article (4 results) (of which Open Access: 3 results,  Peer Reviewed: 3 results) Presentation (11 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Thickness dependence of segmental dynamics in free-standing thin films predicted by a dynamically correlated network model2023

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

      J. Phys. Chem. B

      Volume: 127 Issue: 21 Pages: 4896-4904

    • DOI

      10.1021/acs.jpcb.3c00841

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Polymer dynamics: bulk and nanoconfined polymers2022

    • Author(s)
      T. Sasaki
    • Journal Title

      Polymers

      Volume: 14 Issue: 7 Pages: 1271-1271

    • DOI

      10.3390/polym14071271

    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Journal Article] Adsorption Kinetics of Polystyrene and Poly(9-anthracenyl methyl methacrylate) onto SiO2 Surface Measured by Chip Nano-Calorimetry2022

    • Author(s)
      Ishihara Mina、Watanabe Tomoya、Sasaki Takashi
    • Journal Title

      Polymers

      Volume: 14 Issue: 3 Pages: 605-605

    • DOI

      10.3390/polym14030605

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Dynamically Correlated Network Model for the Collective Dynamics in Glass-Forming Molecular Liquids and Polymers2021

    • Author(s)
      Sasaki Takashi、Tsuzuki Yuya、Nakane Tatsuki
    • Journal Title

      Polymers

      Volume: 13 Issue: 19 Pages: 3424-3424

    • DOI

      10.3390/polym13193424

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] A study on segmental dynamics in free-standing thin films based on a dynamically correlated network model2023

    • Author(s)
      T. Sasaki, T. Nakane
    • Organizer
      9th International Discussion Meeting on Relaxations in Complex Systems
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Mechanism of polymer adsorption from the melt onto fluorinated silica surface2022

    • Author(s)
      M. Ishihara, T. Sasaki
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Segmental dynamics in polymeric thin-films predicted by the dynamically correlated network model2022

    • Author(s)
      T. Nakane, T. Sasaki
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] チップナノカロリメトリによるメタクリル酸エステル系高分子の吸着過程における置換基効果の検討2022

    • Author(s)
      渡部 智也, 石原 湊斗, 佐々木 隆
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ネットワーク状動的相関領域モデルに基づく過冷却液体の協同的ダイナミックスの解析2022

    • Author(s)
      中根 樹, 都築 佑哉, 佐々木 隆
    • Organizer
      第70回レオロジー討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ネットワーク状動的相関領域に基づく過冷却液体中のセグメントダイナミックス2021

    • Author(s)
      佐々木 隆, 都築 佑哉, 中根 樹
    • Organizer
      高分子学会第70回年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ネットワーク状動的相関領域モデルに基づく過冷却液体のダイナミックスの特性化2021

    • Author(s)
      都築 佑哉, 佐々木 隆, 中根 樹
    • Organizer
      第70回高分子討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] ポリスチレン及びポリメタクリル酸9-アントリルメチルのシリカ基板への不可逆吸着2021

    • Author(s)
      石原 実奈, 渡部 智也, 佐々木 隆
    • Organizer
      第70回高分子学会北陸支部研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] ネットワーク状動的相関モデルに基づくガラス形成分子性液体および高分子のダイナミックスの研究2021

    • Author(s)
      都築 佑哉, 中根 樹, 岩井 優登, 佐々木 隆
    • Organizer
      第70回高分子学会北陸支部研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] Mechanism of irreversible adsorption of poly(9-anthracenyl methyl methacrylate) onto silica surfaces2020

    • Author(s)
      M. Ishihara, Y. Naito, M. Sakai and T. Sasaki
    • Organizer
      第69回高分子討論会
    • Related Report
      2020 Research-status Report
  • [Presentation] 表面制御協同運動領域モデルによるPMMAナノ材料のガラス転移温度のサイズ依存性の再現2020

    • Author(s)
      中根 樹,都築佑哉,佐々木 隆
    • Organizer
      第69回高分子討論会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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