Enhanced dielectric response in all-organic polyaniline-poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) composite

V. Bobnar, A. Levstik, C. Huang, Q. M. Zhang

    Research output: Contribution to journalArticlepeer-review

    33 Scopus citations

    Abstract

    The dielectric response of an all-organic composite, comprising conductive polyaniline particles dispersed in the poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) terpolymer matrix, was studied. The pure terpolymer exhibits dielectric properties typical for inorganic relaxors, yet with much lower values of the dielectric constant. On the other hand, admixture of polyaniline, whose conductivity follows the Mott's variable range hopping behavior, strongly increases the dielectric constant of the terpolymer, particularly on approaching the percolation threshold. The frequency dependence of the composite's dielectric response is tentatively described in terms of the extended Maxwell-Wagner mixture approach.

    Original languageEnglish (US)
    Pages (from-to)205-209
    Number of pages5
    JournalJournal of Non-Crystalline Solids
    Volume353
    Issue number2
    DOIs
    StatePublished - Feb 1 2007

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Condensed Matter Physics
    • Materials Chemistry

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