Second-order dielectric constant of a copolymer of vinylidene fluoride and trifluoroethylene (52:48 mole ratio).

  • Ikeda Susumu
    Department of Polymer Materials Engineering, Faculty of Engineering, Yamagata University
  • Suzuki Hideshige
    Department of Polymer Materials Engineering, Faculty of Engineering, Yamagata University
  • Koyama Kiyohito
    Department of Polymer Materials Engineering, Faculty of Engineering, Yamagata University
  • Wada Yasaku
    Department of Polymer Materials Engineering, Faculty of Engineering, Yamagata University

説明

The second-order dielectric constant ε2 of a copolymer of vinylidene fluoride and trifluoroethylene (52:48 in mole) was measured by means of the difference frequency method. ε2 is related to spontaneous polarization Ps and the linear dielectric constant ε1 through a thermodynamic representation of free energy. The relation explains the observed temperature dependence of ε2. ε2 was found to be proportional to the remanent polarization Pr. This is interpreted by the model that the ferroelectric crystal is composed of parallel and antiparallel domains. ε2 in the crystal was deduced from that of the whole polymer on the assumption of the ellipsoidal crystal model.

収録刊行物

  • Polymer Journal

    Polymer Journal 19 (6), 681-686, 1987

    The Society of Polymer Science, Japan

被引用文献 (5)*注記

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参考文献 (10)*注記

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詳細情報 詳細情報について

  • CRID
    1390001206289633024
  • NII論文ID
    130004767892
  • DOI
    10.1295/polymj.19.681
  • COI
    1:CAS:528:DyaL2sXkslylsbg%3D
  • ISSN
    13490540
    00323896
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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