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Detailed Viscoelastic Analysis for Semidilute Entangled Solutions of Polyelectrolytes Using Diffusing Wave Spectroscopy

Research Project

Project/Area Number 21K14686
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 35020:Polymer materials-related
Research InstitutionUniversity of Fukui

Principal Investigator

Matsumoto Atsushi  福井大学, 学術研究院工学系部門, 講師 (20812978)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords高分子電解質 / 絡み合い粘弾性 / 溶液物性 / マイクロレオロジー / 拡散波分光法 / からみ合い / ダイナミクス / 拡散波分光 / レオロジー / スケーリング則 / 粘弾性
Outline of Research at the Start

高分子電解質は,工業的用途だけでなく,食品や化粧品の増粘剤として身の回りの生活用品に用いられており,私たちの生活において重要な高分子の一つである.高分子電解質に関する未解決課題の一つに,準希薄からみ合い水溶液粘弾性における,既存の菅モデルでは説明できない粘弾性スケーリング則がある.本研究は,拡散波分光法を用いた動的粘弾性測定により,高分子電解質鎖の幅広いタイムスケールの大規模運動を観測することで,準希薄からみ合い水溶液に観測された特異な粘弾性スケーリング則の原因解明を目指す.

Outline of Final Research Achievements

Using monodisperse poly(sodium styrene sulfonate) as a model polyelectrolyte system, the high-frequency linear viscoelastic analysis of entangled polyelectrolyte solutions was conducted through diffusing wave spectroscopy micro-rheology method. We found that the entanglement properties of the tested polyelectrolyte at low molecular weights followed the scaling laws for electrically neutral polymers, while those at high molecular weights exhibited the scaling relation predicted for polyelectrolyte solutions. We experimentally demonstrate that the effect of the electrostatic interaction on the entanglement dynamics of polyelectrolytes varies depending on the molecular weight of polyelectrolytes.

Academic Significance and Societal Importance of the Research Achievements

高分子電解質は食品のレオロジー改質剤やセメント中粒子の分散性を安定化させる目的として使用されるなど,我々の生活に必要不可欠な高分子である.一般的に,高分子電解質を溶液に溶かせば,静電相互作用がはたらき,その影響を受けた溶液物性が予想される.しかしならが,我々の研究結果は,高分子電解質の分子量によっては,静電相互作用は作用しないことを実験的に示しており,溶液物性制御における重要な材料開発指針を与えるものである.

Report

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

    (16 results)

All 2024 2023 2022 2021

All Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (10 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results)

  • [Journal Article] Dilute polyelectrolyte solutions: recent progress and open questions2024

    • Author(s)
      G. Lopez Carlos、Matsumoto Atsushi、Shen Amy Q.
    • Journal Title

      Soft Matter

      Volume: 20 Issue: 12 Pages: 2635-2687

    • DOI

      10.1039/d3sm00468f

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Understanding the Role of Loss Modulus of Viscoelastic Substrates in the Evaporation Dynamics of Sessile Drops2024

    • Author(s)
      Iqbal Rameez、Matsumoto Atsushi、Shen Amy Q.、Sen Ashis K.
    • Journal Title

      Langmuir

      Volume: 40 Issue: 19 Pages: 10035-10043

    • DOI

      10.1021/acs.langmuir.4c00191

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Rheology of Polyelectrolyte Solutions: Current Understanding and Perspectives2022

    • Author(s)
      Matsumoto Atsushi
    • Journal Title

      Nihon Reoroji Gakkaishi

      Volume: 50 Issue: 1 Pages: 43-50

    • DOI

      10.1678/rheology.50.43

    • ISSN
      0387-1533, 2186-4586
    • Year and Date
      2022-02-15
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Rheological scaling of ionic-liquid-based polyelectrolytes in ionic liquid solutions: the effect of the ion diameter of ionic liquids2022

    • Author(s)
      Matsumoto Atsushi、Shen Amy Q.
    • Journal Title

      Soft Matter

      Volume: 18 Issue: 21 Pages: 4197-4204

    • DOI

      10.1039/d2sm00484d

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tuning the Solution Viscosity of Ionic-Liquid-Based Polyelectrolytes with Solvent Dielectric Constants via the Counterion Condensation2022

    • Author(s)
      Matsumoto Atsushi、Ukai Ryosuke、Osada Hiroto、Sugihara Shinji、Maeda Yasushi
    • Journal Title

      Macromolecules

      Volume: 55 Issue: 23 Pages: 10600-10606

    • DOI

      10.1021/acs.macromol.2c01405

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Microrheological Approach for Probing the Entanglement Properties of Polyelectrolyte Solutions2021

    • Author(s)
      Matsumoto Atsushi、Zhang Chi、Scheffold Frank、Shen Amy Q.
    • Journal Title

      ACS Macro Letters

      Volume: 11 Issue: 1 Pages: 84-90

    • DOI

      10.1021/acsmacrolett.1c00563

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Estimating the charge fraction of polyelectrolytes in solution via viscosity measurements2024

    • Author(s)
      Marina Ikeda, Shinji Sugihara, Yasushi Maeda, Atsushi Matsumoto
    • Organizer
      The 17th International Workshop for East Asian Young Rheologists
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microrheological Scaling on the Semidilute Entangled Solutions of Polyelectrolytes2023

    • Author(s)
      松本 篤,加藤 郁人,Chi Zhang,杉原 伸治,前田 寧,Frank Scheffold,Amy Q. Shen
    • Organizer
      第72回高分子学会北陸支部研究発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 高分子イオン液体の構造と溶液物性2023

    • Author(s)
      松本 篤, 長田 弘斗, Hou Can,Carlos G Lopez, 杉原 伸治, 前田 寧, 渡邉 貴一
    • Organizer
      第72回高分子学会北陸支部研究発表会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Viscoelastic and Dielectric Responses of Polymerized Ionic Liquid/Ionic Liquid Mixtures2023

    • Author(s)
      Atsushi Matsumoto, Hiroto Aoki, Takumi Sagawa, Hiroki Izutsu, Osamu Urakawa, Tadashi Inoue, Shinji Sugihara, Yasushi Maeda
    • Organizer
      9th International Discussion Meeting on Relaxations in Complex Systems
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Microrheology of Polyelectrolyte Solutions in the Semidilute Entangled Regime2023

    • Author(s)
      Atsushi Matsumoto, Chi Zhang, Frank Scheffold, Amy Q. Shen
    • Organizer
      8th Pacific Rim Conference on Rheology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Effect of the Solvent Dielectric Constant on the Conformation and Dynamics of Polyelectrolytes in Solution2023

    • Author(s)
      Atsushi Matsumoto, Ryosuke Ukai, Hiroto Osada, Shinji Sugihara, Yasushi Maeda
    • Organizer
      8th Pacific Rim Conference on Rheology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高分子電解質の対イオン凝縮における溶媒誘電率の影響2023

    • Author(s)
      松本 篤,長田 弘斗,鵜飼 亮介,杉原 伸治,前田 寧
    • Organizer
      日本レオロジー学会 第50回記念年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Microrheology of polyelectrolyte solutions in the semidilute entangled regime2023

    • Author(s)
      Atsushi Matsumoto, Chi Zhang, Frank Scheffold, Amy Q. Shen
    • Organizer
      8th Pacific Rim Conference on Rheology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 拡散波分光法を用いた高分子電解質準希薄溶液のからみ合い特性に関するスケーリング解析2022

    • Author(s)
      Atsushi Matsumoto, Chi Zhang, Frank Scheffold, Amy Q. Shen
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] Microrheological Analysis of the Entanglement Properties for Polyelectrolyte Semidilute Aqueous Solutions2021

    • Author(s)
      Atsushi Matsumoto, Chi Zhang, Frank Scheffold, Amy Q. Shen
    • Organizer
      第70回高分子討論会
    • Related Report
      2021 Research-status Report

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

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