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Relaxation behavior of polymer glass below glass transition temperature

Research Project

Project/Area Number 19H01861
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 13040:Biophysics, chemical physics and soft matter physics-related
Research InstitutionNagoya University

Principal Investigator

Uneyama Takashi  名古屋大学, 工学研究科, 准教授 (10524720)

Co-Investigator(Kenkyū-buntansha) 土肥 侑也  名古屋大学, 工学研究科, 助教 (10784770)
増渕 雄一  名古屋大学, 工学研究科, 教授 (40291281)
Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2022: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2021: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2020: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Keywords高分子 / ガラス / レオロジー / 緩和 / シミュレーション / 過渡ポテンシャル
Outline of Research at the Start

ポリスチレンのような非晶性高分子は高温では流動性を示すが、冷却固化されると流動性を持たない状態(ガラス状態)になる。本研究では、このようなガラス状態中における高分子のダイナミクスをさまざまな手法を組み合わせて調べ、ガラス状態で高分子がどのように運動しているのか、どのように記述すればよいのかを明らかとする。実験的に粘弾性測定、誘電緩和測定、赤外分光測定等の複数の異なる手法を組み合わせることで分子レベルのダイナミクスを調べる。また、得られた実験結果を分子シミュレーションや理論モデル等と比較することでダイナミクスを詳細に調べる。

Outline of Final Research Achievements

We investigated rheological and relaxational properties of glassy polymers by using experiments, simulations, and theoretical analyses. We paid attention to the low temperature region below the glass transition temperature. We performed experiments and simulations to model polymer glass systems with simple structures, and showed that the time-temperature superposition works for rheological properties. In experiments, we also showed that the functional form of the rheological relaxation is not sensitive to the aging. At the low temperature region, glass formers show strongly collective motions. We successfully modeled such collective motions by using the concept of the transient potential.

Academic Significance and Societal Importance of the Research Achievements

高分子ガラスはポリスチレンやポリメチルメタクリレートのように日常的に広く使われている材料である。高分子ガラスの運動や物性についてこれまでさまざまな研究が行われているが、流動性を失う特徴的温度であるガラス転移点より低温でのレオロジーの観点からの研究は限定的であった。本研究で低温状態の高分子ガラスの挙動がある程度単純な形で記述できることがわかったため、高分子材料の挙動をより基礎的な視点から理解し、よりよい設計や利用につなげられるものと期待できる。

Report

(5 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (61 results)

All 2023 2022 2021 2020 2019

All Journal Article (21 results) (of which Peer Reviewed: 16 results,  Open Access: 1 results) Presentation (39 results) (of which Int'l Joint Research: 8 results,  Invited: 10 results) Book (1 results)

  • [Journal Article] Fluctuating diffusivity emerges even in binary gas mixtures2023

    • Author(s)
      Nakai Fumiaki、Masubuchi Yuichi、Doi Yuya、Ishida Takato、Uneyama Takashi
    • Journal Title

      Physical Review E

      Volume: 107 Issue: 1 Pages: 1-9

    • DOI

      10.1103/physreve.107.014605

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stress Tensor of Single Rigid Dumbbell by Virtual Work Method2022

    • Author(s)
      Uneyama Takashi、Oishi Tatsuma、Ishida Takato、Doi Yuya、Masubuchi Yuichi
    • Journal Title

      Nihon Reoroji Gakkaishi

      Volume: 50 Issue: 4 Pages: 313-322

    • DOI

      10.1678/rheology.50.313

    • ISSN
      0387-1533, 2186-4586
    • Year and Date
      2022-09-15
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coarse-Grained Modeling of Soft Materials by using Transient Potentials2022

    • Author(s)
      畝山 多加志
    • Journal Title

      Journal of the Society of Materials Science, Japan

      Volume: 71 Issue: 8 Pages: 666-671

    • DOI

      10.2472/jsms.71.666

    • ISSN
      0514-5163, 1880-7488
    • Year and Date
      2022-08-15
    • Related Report
      2022 Annual Research Report
  • [Journal Article] Linear Response Theory of Scale-Dependent Viscoelasticity for Overdamped Brownian Particle Systems2022

    • Author(s)
      Uneyama Takashi
    • Journal Title

      Nihon Reoroji Gakkaishi

      Volume: 50 Issue: 3 Pages: 275-286

    • DOI

      10.1678/rheology.50.275

    • ISSN
      0387-1533, 2186-4586
    • Year and Date
      2022-06-15
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Application of projection operator method to coarse-grained dynamics with transient potential2022

    • Author(s)
      Uneyama Takashi
    • Journal Title

      Physical Review E

      Volume: 105 Issue: 4

    • DOI

      10.1103/physreve.105.044117

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of Slip-Spring Parameters and Rouse Bead Density on Polymer Dynamics in Multichain Slip-Spring Simulations2022

    • Author(s)
      Masubuchi Yuichi、Doi Yuya、Uneyama Takashi
    • Journal Title

      The Journal of Physical Chemistry B

      Volume: 126 Issue: 15 Pages: 2930-2941

    • DOI

      10.1021/acs.jpcb.2c00697

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A New Viewpoint for Complex Dynamics―Time-Dependent and Fluctuating Potentials and Diffusion Coefficients2021

    • Author(s)
      畝山 多加志
    • Journal Title

      Butsuri

      Volume: 76 Issue: 10 Pages: 663-668

    • DOI

      10.11316/butsuri.76.10_663

    • NAID

      130008101521

    • ISSN
      0029-0181, 2423-8872
    • Year and Date
      2021-10-05
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Linear Viscoelasticity of Dumbbells Interacting via Gaussian Soft-Core Potential2021

    • Author(s)
      Uneyama Takashi
    • Journal Title

      Nihon Reoroji Gakkaishi

      Volume: 49 Issue: 2 Pages: 61-71

    • DOI

      10.1678/rheology.49.61

    • NAID

      130008038519

    • ISSN
      0387-1533, 2186-4586
    • Year and Date
      2021-04-15
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Plateau Moduli of Several Single-Chain Slip-Link and Slip-Spring Models2021

    • Author(s)
      Uneyama Takashi、Masubuchi Yuichi
    • Journal Title

      Macromolecules

      Volume: 54 Issue: 3 Pages: 1338-1353

    • DOI

      10.1021/acs.macromol.0c01790

    • NAID

      120007163646

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] からみあった高分子のメソスケールモデリングの進展2020

    • Author(s)
      畝山多加志
    • Journal Title

      Ensemble

      Volume: 22 Issue: 3 Pages: 210-215

    • DOI

      10.11436/mssj.22.210

    • NAID

      130008083480

    • ISSN
      1884-5088, 1884-6750
    • Year and Date
      2020-07-31
    • Related Report
      2020 Annual Research Report
  • [Journal Article] ゆらぐ拡散係数を用いた拡散・緩和現象の記述2020

    • Author(s)
      畝山多加志
    • Journal Title

      Ensemble

      Volume: 22 Issue: 2 Pages: 134-141

    • DOI

      10.11436/mssj.22.134

    • NAID

      130008031981

    • ISSN
      1884-5088, 1884-6750
    • Year and Date
      2020-04-30
    • Related Report
      2020 Annual Research Report
  • [Journal Article] Dissipation in Langevin Equation and Construction of Mobility Tensor from Dissipative Heat Flow2020

    • Author(s)
      Takashi Uneyama
    • Journal Title

      Nihon Reoroji Gakkaishi

      Volume: 48 Issue: 2 Pages: 65-78

    • DOI

      10.1678/rheology.48.65

    • NAID

      130007843293

    • ISSN
      0387-1533, 2186-4586
    • Year and Date
      2020-04-15
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Primitive chain network simulations for the interrupted shear response of entangled polymeric liquids2020

    • Author(s)
      Yuichi Masubuchi, Yuya Doi, and Takashi Uneyama
    • Journal Title

      Soft Matter

      Volume: 16 Issue: 28 Pages: 6654-6661

    • DOI

      10.1039/d0sm00654h

    • NAID

      120006941026

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coarse-graining of microscopic dynamics into a mesoscopic transient potential model2020

    • Author(s)
      Uneyama Takashi
    • Journal Title

      Physical Review E

      Volume: 101 Issue: 3

    • DOI

      10.1103/physreve.101.032106

    • NAID

      120006848969

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Inertia on Linear Viscoelasticity of Harmonic Dumbbell Model2019

    • Author(s)
      Uneyama Takashi、Nakai Fumiaki、Masubuchi Yuichi
    • Journal Title

      Nihon Reoroji Gakkaishi

      Volume: 47 Issue: 4 Pages: 143-154

    • DOI

      10.1678/rheology.47.143

    • NAID

      130007722539

    • ISSN
      0387-1533, 2186-4586
    • Year and Date
      2019-09-13
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Retardation of the reaction kinetics of polymers due to entanglement in the post-gel stage in multi-chain slip-spring simulations2019

    • Author(s)
      Masubuchi Yuichi、Uneyama Takashi
    • Journal Title

      Soft Matter

      Volume: 15 Issue: 25 Pages: 5109-5115

    • DOI

      10.1039/c9sm00681h

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unveiling diffusive states from center-of-mass trajectories in glassy dynamics2019

    • Author(s)
      Yuto Hachiya, Takashi Uneyama, Toshihiro Kaneko, and Takuma Akimoto
    • Journal Title

      Journal of Chemical Physics

      Volume: 151 Issue: 3 Pages: 034502-034502

    • DOI

      10.1063/1.5100640

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Brownian motion with alternately fluctuating diffusivity: Stretched-exponential and power-law relaxation2019

    • Author(s)
      Tomoshige Miyaguchi; Takashi Uneyama; Takuma Akimoto
    • Journal Title

      Physical Review E

      Volume: 100 Issue: 1 Pages: 012116-012116

    • DOI

      10.1103/physreve.100.012116

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multi-chain slip-spring simulations for polyisoprene melts2019

    • Author(s)
      Masubuchi Yuichi、Uneyama Takashi
    • Journal Title

      Korea-Australia Rheology Journal

      Volume: 31 Issue: 4 Pages: 241-248

    • DOI

      10.1007/s13367-019-0024-3

    • NAID

      120006848990

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] からみあった高分子のダイナミクスにおける末端の役割2019

    • Author(s)
      畝山多加志
    • Journal Title

      高分子

      Volume: 68 Pages: 598-600

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 高分子の粗視化モデリングとシミュレーション2019

    • Author(s)
      畝山 多加志
    • Journal Title

      CICSJ Bulletin

      Volume: 37 Issue: 4 Pages: 81

    • DOI

      10.11546/cicsj.37.81

    • NAID

      130007777605

    • ISSN
      0913-3747, 1347-2283
    • Related Report
      2019 Annual Research Report
  • [Presentation] 過減衰 Brown 粒子系の長さスケールに依存した線形粘弾性の理論2022

    • Author(s)
      畝山多加志
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 過渡ポテンシャルを用いた結晶性高分子の粗視化モデルの構築2022

    • Author(s)
      畝山多加志
    • Organizer
      第70回レオロジー討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ゆらぐ過渡ポテンシャルを用いた高分子のメソスケール運動の粗視化2022

    • Author(s)
      畝山多加志
    • Organizer
      レア・イベントの計算科学第5回ワークショップ:レア・イベント解析とデータサイエンス
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] ポリスチレンガラスの粘弾性の副緩和におけるエージング温度および時間の効果2022

    • Author(s)
      市川千陽,土肥侑也,畝山多加志,増渕雄一
    • Organizer
      日本レオロジー学会第49年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] エージングしたポリスチレンガラスの副緩和の誘電緩和と線形粘弾性の比較2022

    • Author(s)
      市川千陽, 石田崇人, 土肥侑也, 畝山多加志, 増渕雄一
    • Organizer
      第70回レオロジー討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 1本鎖スリップリンク・スリップスプリングモデルの平坦部弾性率の理論解析2021

    • Author(s)
      畝山多加志,増渕雄一
    • Organizer
      日本レオロジー学会第48年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ランダムおよび末端における高分子鎖の切断モデルによる分子量分布の時間変化の理論解析2021

    • Author(s)
      畝山多加志
    • Organizer
      分子学会第70回年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 射影演算子を直接適用したLangevin方程式の粗視化2021

    • Author(s)
      畝山多加志
    • Organizer
      日本物理学会 2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 分子間相互作用がダンベルモデルの構造と線形粘弾性に与える影響2021

    • Author(s)
      畝山多加志
    • Organizer
      第69回レオロジー討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Modeling Mesoscopic Dynamics of Polymeric Systems by Coarse-Grained Dynamics Models with Transient Potentials2021

    • Author(s)
      Takashi Uneyama
    • Organizer
      Materials Research Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 過冷却高分子のシミュレーションにおける応力緩和と形態緩和の時間温度換算2021

    • Author(s)
      畝山多加志
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 射影演算子法の過渡ポテンシャルダイナミクスへの適用2020

    • Author(s)
      畝山多加志
    • Organizer
      日本物理学会 2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ミクロスケール運動モデルからの過渡ポテンシャルダイナミクスの導出2020

    • Author(s)
      畝山多加志
    • Organizer
      第68回レオロジー討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 1次元過渡結合系の示すクラスタ構造とダイナミクスの関係2020

    • Author(s)
      畝山多加志
    • Organizer
      MRMフォーラム2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] Coarse-Grained Modeling for Mesoscopic Dynamics of Polymers by Langevin Equation with Transient Potential2020

    • Author(s)
      Takashi Uneyama
    • Organizer
      International Congress on Rheology 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 過渡結合MDPD法への固体壁の導入2020

    • Author(s)
      広井紀彦,土肥侑也,畝山多加志,増渕雄一
    • Organizer
      第68回レオロジー討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 過渡結合MDPD法によるポリスチレンメルトのキャピラリーシニングのシミュレーション2020

    • Author(s)
      広井紀彦,畝山多加志,増渕雄一
    • Organizer
      日本レオロジー学会第47年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 溶融した低密度ポリエチレン発泡体のスタートアップせん断測定2020

    • Author(s)
      本裕太, 土肥侑也, 畝山多加志, 増渕雄一
    • Organizer
      第68回レオロジー討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] LDPEをマトリックスとする粘弾性発泡体の線形粘弾性測定の解析2020

    • Author(s)
      榎本裕太,畝山多加志,増渕雄一
    • Organizer
      日本レオロジー学会第47年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 高分子ダイナミクスのメソスケール粗視化シミュレーション2019

    • Author(s)
      畝山多加志
    • Organizer
      第68回高分子学会年次大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 高分子溶融体・濃厚溶液の構造とダイナミクス2019

    • Author(s)
      畝山多加志
    • Organizer
      19-1 高分子学会講演会「高分子のダイナミクスとその分子メカニズム」
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Multi-chain simulations of entangled polymer dynamics2019

    • Author(s)
      Yuichi Masubuchi
    • Organizer
      Summer School on “Transient and complex polymer networks” by DODYNET project(2019/7/23), Anacapri, Italy
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Primitive Chain Network Simulations for H-Polymer Melt under High Shear2019

    • Author(s)
      Yuichi Masubuchi
    • Organizer
      Workshop on “Polymers in fast flows” by SOFTCOMP project
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 過渡ポテンシャルとゆらぐ拡散係数による線形非平衡ダイナミクスの記述2019

    • Author(s)
      畝山多加志
    • Organizer
      第1回研究会「非線形・非平衡系の数理と物理」
    • Related Report
      2019 Annual Research Report
  • [Presentation] Modeling of entangled polymer dynamics2019

    • Author(s)
      Yuichi Masubuchi
    • Organizer
      International Symposium on Polymers and networks via topology and entanglement
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Retardation of reaction kinetics of polymers due to entanglement in post-gel stage in multi-chain slip-spring simulations2019

    • Author(s)
      Yuichi Masubuchi and Takashi Uneyama
    • Organizer
      Polymer Engineering and Science International 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 過渡ポテンシャルを用いた高分子系の粗視化記述理論の考察2019

    • Author(s)
      畝山多加志
    • Organizer
      日本物理学会 2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 拡散係数がゆらぐOrnsetin-Uhlenbeck過程における緩和挙動の解析2019

    • Author(s)
      畝山多加志, 宮口智成, 秋元琢磨
    • Organizer
      日本物理学会 2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 高分子ナノコンポジットの多体スリップスプリングモデル2019

    • Author(s)
      増渕雄一,畝山多加志
    • Organizer
      第68回高分子討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 過渡ポテンシャルの導入による高分子のメソスケール粗視化の新規手法2019

    • Author(s)
      畝山多加志
    • Organizer
      第68回高分子討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ダンベルモデルとRouseモデルの線形粘弾性に対する慣性の影響2019

    • Author(s)
      畝山多加志, 仲井文明, 増渕雄一
    • Organizer
      第67回レオロジー討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] A highly coarse-grained model for dynamics of entangled polymers using transient bonds2019

    • Author(s)
      Takashi Uneyama
    • Organizer
      The 91st Annual Meeting of The Society of Rheology
    • Related Report
      2019 Annual Research Report
  • [Presentation] 記憶効果を持つメソスケールダイナミクスのメモリカーネルを用いない粗視化手法2019

    • Author(s)
      畝山多加志
    • Organizer
      高分子基礎研究会2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] 高分子レオロジーの粗視化分子モデル2019

    • Author(s)
      畝山多加志
    • Organizer
      関東高分子若手研究会2019 秋の講演会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 過渡結合モデルにおける不均一なダイナミクス2019

    • Author(s)
      畝山多加志
    • Organizer
      第9回ソフトマター研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 過渡的な結合を用いたからみあった高分子の粗視化分子シミュレーション2019

    • Author(s)
      畝山多加志, 増渕雄一
    • Organizer
      第33回分子シミュレーション討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Multi-Chain Simulations for Entangled Polymers2019

    • Author(s)
      Yuichi Masubuchi and Takashi Uneyama
    • Organizer
      The 16th Pacific Polymer Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Modeling of Entangled Polymer Dynamics2019

    • Author(s)
      Yuichi Masubuchi and Takashi Uneyama
    • Organizer
      Materials Research Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 過渡ポテンシャルとゆらぐ拡散係数を用いた高分子系の粗視化方法2019

    • Author(s)
      畝山多加志
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Book] 流体・流動解析事例集 -高分子成形加工、塗料・コーティング、化粧品・食品など-2019

    • Author(s)
      畝山多加志
    • Total Pages
      6
    • Publisher
      技術情報協会
    • Related Report
      2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

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