Dielectric Relaxation of Type-A Rouse Chains Undergoing Reversible End-Adsorption and Desorption

• Zhao Xinyang

  Department of Polymer Science and Engineering, Shanghai Jiao Tong University

• Yu Wei

  Department of Polymer Science and Engineering, Shanghai Jiao Tong University

• Matsumiya Yumi

  Institute for Chemical Research, Kyoto University

• Watanabe Hiroshi

  Institute for Chemical Research, Kyoto University

• Kwon Youngdon

  School of Chemical Engineering, Sungkyunkwan University

Abstract

Theoretical analysis was made for dielectric relaxation of model chains, linear Rouse chains having type-A dipoles and being end-adsorbed (tethered) and desorbed at equilibrium, with an attempt to find a clue for investigation of the adsorbed chain dynamics in polymer nanocomposites. Expanding the bond vector of those chains with respect to the Rouse eigenfunctions, we obtained analytical expressions of the normalized complex dielectric permittivity and the first-moment average relaxation time of those chains. The adsorbed and desorbed chains, respectively, were found to exhibit retarded and accelerated relaxation due to motional coupling activated by their mutual conformation transfer.

Journal

• Nihon Reoroji Gakkaishi

  Nihon Reoroji Gakkaishi 48 (1), 27-35, 2020-02-14

  The Society of Rheology, Japan

Keywords

• Reversible end-adsorption
• Rouse dynamics
• Type-A dipole
• Dielectric relaxation

Details

• CRID: 1390565134835230976
• NII Article ID: 130007808443
• NII Book ID: AN00198812
• DOI: 10.1678/rheology.48.27
• ISSN: 21864586
• ISSN: 03871533
• NDL BIB ID: 030269902
• Web Site: http://id.ndl.go.jp/bib/030269902
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I030269902
• Web Site: https://www.jstage.jst.go.jp/article/rheology/48/1/48_27/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed