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Development of Coarse-Grained Molecular Model for Predicting Dynamics of Entangled Associating Polymers

Research Project

Project/Area Number 21K13893
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 13040:Biophysics, chemical physics and soft matter physics-related
Research InstitutionKyoto University

Principal Investigator

SATO Takeshi  京都大学, 化学研究所, 助教 (70883536)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords会合性高分子 / 紐状ミセル溶液 / 絡み合い状態 / レオロジー / ダイナミクス / 高分子 / 絡み合い / 分岐構造 / 粗視化モデル / 分子動力学法 / バネ・ビーズモデル / 非絡み合い高分子系 / 絡み合い高分子系 / 会合・解離 / 界面活性剤溶液 / シミュレーション
Outline of Research at the Start

会合性高分子は,可逆的な会合・解離の影響で,通常の高分子にない自己修復性や外場応答性を示す.このような会合性高分子は新規材料として応用可能な面を持つ一方,その絡み合い運動と会合および解離の競合によって現れるダイナミクスを予測することはいまだに困難である.
本研究では,実験と連携することで,会合性高分子のダイナミクスを予測するモデルを構築する.そのモデルを用いた数値計算により,絡み合い会合性高分子のレオロジー挙動の背後にある分子運動の理解を開拓することを目的とする.更にこの研究を通して,分子間に会合・解離や分裂・結合等の機構を有する分子のレオロジーの理解の糸口を掴むことを目指す.

Outline of Final Research Achievements

Associative polymers in an entangled state show characteristic rheological behaviors due to the competition between entangled polymer dynamics and association/dissociation processes. To deepen our understanding of the long-term dynamics of such polymers, one of the promising methods is numerical simulations using mesoscopic coarse-grained models.
In this study, we aimed to develop coarse-grained models for entangled associative polymers and entangled thread-like micellar solution systems with mechanisms similar to associative polymers. As our significant achievements, we presented a coarse-grained model that successfully reproduces the experimental linear and nonlinear rheological behaviors for the latter system. Additionally, we extended coarse-grained models for unentangled and entangled non-associative polymers, which are expected to serve as bases for improving the accuracy of models of associative polymers.

Academic Significance and Societal Importance of the Research Achievements

通常の絡み合い高分子系に対しては,粗視化モデルの構築を含めて精力的な理論研究が行われてきた.一方で,絡み合いによる束縛に加えて,会合・解離(または結合・分裂),すなわち分子間の「反応」を持つ高分子類に対する知見は未だに乏しく,実用的なモデルはこれまでに提案されていなかった.本研究では,そのような機構を持つ高分子類のレオロジー挙動を予測する粗視化モデルの1例を提示できた.
構築した粗視化モデルをさらに発展させれば,レオロジー実験と同程度の精度の数値実験を行うことができる.このようなモデルから生成される質の高いデータは,データ駆動の手法を用いた物性予測の加速に資するという意義があると考えられる.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (27 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (4 results) Journal Article (9 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 9 results,  Open Access: 4 results) Presentation (11 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results) Book (1 results) Remarks (2 results)

  • [Int'l Joint Research] Department of Chemical Engineering/University of Michigan(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Changchun Institute of Applied Chemistry/Chinese Academy of Sciences(中国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] School of Chemical Engineering/Sungkyunkwan University(韓国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Department of Chemical Engineering/University of Michigan(米国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Testing the Ability of the Slip-Spring Model to Describe Constraint Release Effects Using Experimental Linear and Nonlinear Rheology2023

    • Author(s)
      Sato Takeshi、Gong Yanan、Larson Ronald G.
    • Journal Title

      Macromolecules

      Volume: 56 Issue: 20 Pages: 8116-8132

    • DOI

      10.1021/acs.macromol.3c00820

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Rouse Analysis of Nonlinear Rheology of Unentangled Polymer Melts under Fast Shear: Viscoelastic Response to Superposed Oscillatory Strain2023

    • Author(s)
      Matsumiya Yumi、Sato Takeshi、Chen Quan、Watanabe Hiroshi
    • Journal Title

      Macromolecules

      Volume: - Issue: 8 Pages: 2930-2938

    • DOI

      10.1021/acs.macromol.3c00005

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Rheo-Dielectric Behavior of Unentangled Poly(butylene oxide) under Steady Shear: Preliminary Evaluation of Non-Equilibrium Parameters at the Onset of Nonlinearity2022

    • Author(s)
      Matsumiya Yumi、Sato Takeshi、Chen Quan、Watanabe Hiroshi
    • Journal Title

      Nihon Reoroji Gakkaishi

      Volume: 50 Issue: 5 Pages: 371-385

    • DOI

      10.1678/rheology.50.371

    • ISSN
      0387-1533, 2186-4586
    • Year and Date
      2022-12-15
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Rheo-Dielectrics and Diffusion of Type-A Rouse Chain under Fast Shear Flow: Method of Evaluation of Non-Equilibrium Parameters for FENE, Friction-Reduction, and Brownian Force Intensity Variation2022

    • Author(s)
      T. Sato, Y. Matsumiya, and H. Watanabe
    • Journal Title

      Nihon Reoroji Gakkaishi

      Volume: 50 Issue: 2 Pages: 253-268

    • DOI

      10.1678/rheology.50.253

    • ISSN
      0387-1533, 2186-4586
    • Year and Date
      2022-04-15
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Modeling Techniques for the Rheology of Wormlike Micellar Solutions2022

    • Author(s)
      Takeshi Sato
    • Journal Title

      Nihon Reoroji Gakkaishi

      Volume: 50 Issue: 1 Pages: 9-13

    • DOI

      10.1678/rheology.50.9

    • ISSN
      0387-1533, 2186-4586
    • Year and Date
      2022-02-15
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stretch-orientation-induced reduction of friction in well-entangled bidisperse blends: a dual slip-link simulation study2022

    • Author(s)
      Miyamoto Souta、Sato Takeshi、Taniguchi Takashi
    • Journal Title

      Rheologica Acta

      Volume: 62 Issue: 1 Pages: 57-70

    • DOI

      10.1007/s00397-022-01378-5

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Experimental study of phase separation in dynamically asymmetric unentangled polymer blend2022

    • Author(s)
      Sato Takeshi、Matsumiya Yumi、Watanabe Hiroshi
    • Journal Title

      The Journal of Chemical Physics

      Volume: 157 Issue: 22 Pages: 224908-224908

    • DOI

      10.1063/5.0124087

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Nonlinear rheology of entangled wormlike micellar solutions predicted by a micelle-slip-spring model2022

    • Author(s)
      Takeshi Sato and Ronald G. Larson
    • Journal Title

      Journal of Rheology

      Volume: 66 Issue: 3 Pages: 639-656

    • DOI

      10.1122/8.0000426

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Constitutive Equation for Rouse Model Modified for Variations of Spring Stiffness, Bead Friction, and Brownian Force Intensity Under Flow2021

    • Author(s)
      T. Sato, Y. Kwon, Y. Matsumiya, and H. Watanabe
    • Journal Title

      Physics of Fluids

      Volume: 33 Issue: 6 Pages: 063106-063106

    • DOI

      10.1063/5.0055559

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] EXPERIMENTAL STUDY ON PHASE SEPARATION DYNAMICS OF UNENTANGLED POLYMER BLEND WITH DYNAMIC ASYMMETRY2023

    • Author(s)
      Takeshi Sato, Yumi Matsumiya, and Hiroshi Watanabe
    • Organizer
      8th Pacific Rim Conference on Rheology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Phase separation dynamics of unentangled polymer blend with dynamic asymmetry: An experimental test2023

    • Author(s)
      Takeshi Sato, Yumi Matsumiya, and Hiroshi Watanabe
    • Organizer
      XIXth International Congress on Rheology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Phase separation in dynamically asymmetric unentangled polymer blend: An experimental study2023

    • Author(s)
      Takeshi Sato, Yumi Matsumiya, Hiroshi Watanabe
    • Organizer
      APS March Meeting 2023 (Virtual)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 粗視化モデルによる絡み合いひも状ミセル溶液の非線形レオロジー予測2022

    • Author(s)
      佐藤健, Ronald G. Larson
    • Organizer
      日本レオロジー学会第49年会
    • Related Report
      2022 Research-status Report
  • [Presentation] メソスケールモデルによるひも状ミセル溶液のレオロジー予測2022

    • Author(s)
      佐藤健
    • Organizer
      第19回希薄溶液の流動学講演会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] A Mesoscopic Model for Nonlinear Rheology of Entangled Wormlike Micellar Solutions2022

    • Author(s)
      Takeshi Sato and Ronald G. Larson
    • Organizer
      93rd Annual Meeting Society of Rheology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Rheo-dielectrics of type-A Rouse chain under fast shear flow: Method of evaluating non-equilibrium parameters for FENE, friction-reduction, and Brownian force intensity variation2022

    • Author(s)
      Yumi Matsumiya, Takeshi Sato, Quan Chen, and Hiroshi Watanabe
    • Organizer
      93rd Annual Meeting Society of Rheology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 動的な非対称性を有する非絡み合い高分子ブレンドにおける相分離挙動2022

    • Author(s)
      佐藤健, 松宮由実, 渡辺宏
    • Organizer
      第10回ソフトマター研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] 動的な非対称性を有する非絡み合い高分子ブレンドの相分離挙動の研究2022

    • Author(s)
      佐藤健, 松宮由実, 渡辺宏
    • Organizer
      2022年度高分子基礎物性研究会・高分子計算機科学研究会・高分子ナノテクノロジー研究会合同討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] 動的に非対称な非絡み合い高分子ブレンドにおける相分離過程の実験的検討2021

    • Author(s)
      佐藤健, 松宮由実, 渡辺宏
    • Organizer
      日本レオロジー学会第48年会
    • Related Report
      2021 Research-status Report
  • [Presentation] 流動下における修正Rouseモデルの構成方程式2021

    • Author(s)
      佐藤健, Youngdon Kwon, 松宮由実, 渡辺宏
    • Organizer
      第69回レオロジー討論会
    • Related Report
      2021 Research-status Report
  • [Book] 化学工学系流体シミュレーションの最前線 -基礎・実践・将来展望-,第4章「階層連携シミュレーションによるソフトマターの流動解析」2024

    • Author(s)
      化学工学会 粒子・流体プロセス部会
    • Total Pages
      228
    • Publisher
      化学工学会 関東支部(編)
    • Related Report
      2023 Annual Research Report
  • [Remarks] 個人ページ

    • URL

      https://tsmss-rheology.com/index.html

    • Related Report
      2023 Annual Research Report 2021 Research-status Report
  • [Remarks] 個人HP

    • URL

      https://tsmss-rheology.com/index.html

    • Related Report
      2022 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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