A type of poly(vinylidene fluoride-trifluoroethylene) copolymer exhibiting ferroelectric relaxor behavior at high temperature (∼100 °c)

Hui Min Bao, Cheng Liang Jia, Chang Chun Wang, Qun Dong Shen, Chang Zheng Yang, Q. M. Zhang

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    19 Scopus citations

    Abstract

    We report a class of poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] copolymers synthesized via reductive dechlorination from P(VDF-CTFE) [termed as the reduced P(VDF-TrFE) copolymer], which exhibit ferroelectric relaxor behavior at high temperature (∼100 °C). It was found that the reduced P(VDF-TrFE) 6634 mol % copolymer has very high content of head-to-head and tail-to-tail defects, which may act as random defects, leading to the observed ferroelectric relaxor at high temperature. Furthermore, the reduced copolymer also exhibits a high melting point (∼200 °C), which also makes it attractive for high-temperature dielectric applications.

    Original languageEnglish (US)
    Article number042903
    JournalApplied Physics Letters
    Volume92
    Issue number4
    DOIs
    StatePublished - 2008

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)

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