Ferroelectric and electromechanical properties of poly(vinylidene-fluoride-trifluoroethylene-chlorotrifluoroethylene) terpolymer

Haisheng Xu, Z. Y. Cheng, Dana Olson, T. Mai, Q. M. Zhang, G. Kavarnos

    Research output: Contribution to journalArticle

    242 Scopus citations

    Abstract

    This letter reports the ferroelectric and electromechanical properties of a class of ferroelectric polymer, poly(vinylidene-fluoride-trifluoroethylene-chlorotrifluoroethylene) terpolymer, which exhibits a slim polarization hysteresis loop and a high electrostrictive strain at room temperature. The dielectric and polarization behaviors of this terpolymer are typical of the ferroelectric relaxor. The x-ray and Fourier transform infrared results reveal that the random incorporation of bulky chlorotrifluoroethylene (CTFE) ter-monomers into polymer chains causes disordering of the ferroelectric phase. Furthermore, CTFE also acts as random defect fields which randomize the inter-and intrachain polar coupling, resulting in the observed ferroelectric relaxor behavior.

    Original languageEnglish (US)
    Pages (from-to)2360-2362
    Number of pages3
    JournalApplied Physics Letters
    Volume78
    Issue number16
    DOIs
    StatePublished - Apr 16 2001

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)

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