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Unified View of Entanglements in Polymeric Liquids: Binary Blends

Research Project

Project/Area Number 19K03761
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 13040:Biophysics, chemical physics and soft matter physics-related
Research InstitutionYamagata University

Principal Investigator

Sukumaran S. K.  山形大学, 大学院有機材料システム研究科, 准教授 (70598177)

Co-Investigator(Kenkyū-buntansha) 瀧本 淳一  山形大学, 大学院有機材料システム研究科, 教授 (50261714)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
KeywordsMiscible Polymer Blends / Polymer Dynamics / Local Structure / Polymer Entanglements / Polymer Melts / Local Liquid Structure / Polymeric Liquids / Mixing Rule / Polymer Blends / Entanglements / Topological Analysis / Monomer size disparity
Outline of Research at the Start

As a paradigmatic example of the effect of topological constraints, monomer/chain size, and local packing on molecular motion, we will investigate the interplay between disparities in monomer size and chain stiffness, and composition fluctuations in determining the properties of entangled binary blends. Polymer blends were chosen because while they resemble both melts (Gaussian statistics, melt-like local packing, small density fluctuations) and solutions (large composition fluctuations, dynamical asymmetry, dilution), there are experimental indications that they are qualitatively different.

Outline of Final Research Achievements

The major outcomes of the project are as follows: (1) Disparity in the size of monomers is sufficient for polymer blends to exhibit anomalous mixing for quantities related to entanglements, for instance the plateau modulus or equivalently, the tube diameter. We have verified this for blends of polymers that were nearly identical except their monomer sizes were either in the ratio 2:1 or 3:1. The local liquid-like structure of the blend was investigated using the radial distribution function (RDF). The RDF indicated that the mixing was nonrandom with an increased probability for the small monomers to be the non-bonded neighbors of the large monomers. We suspect that the origin of the anomalous mixing rules is related to this nonrandom mixing and efforts are underway to generalize the available mixing rules to account for this effect.
Surprisingly, we also found that the relaxation time of the large monomer chains increased and that of the small monomer chains decreased upon blending.

Academic Significance and Societal Importance of the Research Achievements

Traditionally, the precise local liquid-like structure (monomer packing) is ignored in understanding the properties of dense polymeric liquids. Polymer blends with monomer size disparity present a major challenge to this view and suggest that concepts from liquid state physics are also necessary.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2021 2020 2019

All Journal Article (5 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] A scattering function for correlated lamellae2021

    • Author(s)
      Camara Michael、Rishi Kabir、Beaucage Gregory、Sukumaran Sathish K.
    • Journal Title

      Polymer

      Volume: 237 Pages: 124281-124281

    • DOI

      10.1016/j.polymer.2021.124281

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Modulation of Optical Anisotropy in Chitosan Thin Films: Role of Swelling2021

    • Author(s)
      Lairenjam Pradipkanti Devi、Sukumaran Sathish K.、Satapathy Dillip K.
    • Journal Title

      Macromolecules

      Volume: 54 Issue: 23 Pages: 10931-10942

    • DOI

      10.1021/acs.macromol.1c00613

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Simulations of Startup Planar Elongation of an Entangled Polymer Melt2020

    • Author(s)
      Keiko Takeda, Yuichi Masubuchi, Masataka Sugimoto, Kiyohito Koyama, Sathish K. Sukumaran*
    • Journal Title

      Nihon Reoroji Gakkaishi (J. Soc. Rheol. Jpn.)

      Volume: 48 Issue: 1 Pages: 43-48

    • DOI

      10.1678/rheology.48.43

    • NAID

      130007808525

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Electrical Conductivity and Linear Rheology of Multiwalled Carbon Nanotube/Acryloni- trile Butadiene Styrene Polymer Nanocomposites Prepared by Melt Mixing and Solution Casting2019

    • Author(s)
      Sathish K. Sukumaran*, Takafumi Kobayashi, Shunsuke Takeda, Ajit Khosla, Hidemitsu Furukawa, and Masataka Sugimoto
    • Journal Title

      J. Electrochemical Society

      Volume: 166 Issue: 9 Pages: B3091-B3095

    • DOI

      10.1149/2.0171909jes

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Preface -- JES Focus Issue on 4D Materials and Systems2019

    • Author(s)
      Rangachary Mukundan, Hidemitsu Furukawa, Giuseppe Milano, Hiroyuki Matsui, Tsukasa Yoshida, Sathish K. Sukumaran, Jessica Koehne, Peter Hesketh, Kafil M Razeeb, Luca Magagnin, Ajit Khosla, Johan Moulin
    • Journal Title

      J. Electrochemical Society

      Volume: 166 Issue: 9 Pages: Y11-Y11

    • DOI

      10.1149/2.0481909jes

    • Related Report
      2019 Research-status Report
    • Open Access / Int'l Joint Research
  • [Presentation] Rheology in 3d Printing2021

    • Author(s)
      S. K. Sukumaran
    • Organizer
      4DMS+SoRo International Summer School
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Modulation of Optical Anisotropy in Chitosan Thin Films: Role of Swelling2021

    • Author(s)
      S. K. Sukumaran, P. D. Lairenjem, D. K. Satapathy
    • Organizer
      69th Rheology Forum, Society of Rheology, Japan (第 69 回 レオロジー討論会)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Entanglements in binary polymer blends2020

    • Author(s)
      Sathish K. Sukumaran, Junichi Takimoto
    • Organizer
      ICR2020 - 18th International Congress on Rheology
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Sol-gel transition in polymer grafted rubber nanoparticles in a polymer matrix2020

    • Author(s)
      Sathish K. Sukumaran, Kengo Ishizuka, Kazuma Yamamoto, Keisuke Hatano, Yuji Aoki, Masataka Sugimoto
    • Organizer
      Complex Fluids 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Sol-gel transition in polymer grafted rubber nanoparticle/polymer melt suspensions2020

    • Author(s)
      Sathish K. Sukumaran, Kengo Ishizuka, Keisuke Hatano, Yuji Aoki, Masataka Sugimoto
    • Organizer
      68th Rheology Forum, Society of Rheology, Japan (第 68 回 レオロジー討 論会)
    • Related Report
      2020 Research-status Report
  • [Presentation] Entanglements in binary blends2019

    • Author(s)
      S K. Sukumaran, Y. Suzuki, A. Higuchi, S. Imai, J. Takimoto
    • Organizer
      67th Rheology Forum, Society of Rheology, Japan (第 67 回 レオロジー討 論会)
    • Related Report
      2019 Research-status Report
  • [Presentation] Slip and roughness at the interface between immiscible polymeric liquids2019

    • Author(s)
      S. K. Sukumaran, T. Ito, R. Komuro, M. Sugimoto
    • Organizer
      Polymer Engineering and Science Interna- tional (PESI) Conference 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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