Cooperative relaxations/transitions in ferroelectric polymers View Full Text


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Article Info

DATE

1993-08

AUTHORS

G. Teyssèdre, A. Bernès, C. Lacabanne

ABSTRACT

Dielectric relaxation and thermal transitions in β-PVDF have been investigated by Thermo-Stimulated Current spectroscopy and Differential Scanning Calorimetry respectively. A comparative study of spectra and thermograms has been performed. The relaxation mode associated with the glass transition of the true amorphous phase is characterized by relaxation times obeying a compensation law due to cooperative molecular movements. A conformationally disordered structure is proposed for β-PVDF to explain thermal events occurring around 60°C. Ageing of ferroelectric properties of β-PVDF has been associated with cooperative molecular movements liberated largely below the melting point. More... »

PAGES

711-719

References to SciGraph publications

  • 1991-08. Thermally Stimulated Current spectroscopy for the study of thermoplastics in JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf02546643

    DOI

    http://dx.doi.org/10.1007/bf02546643

    DIMENSIONS

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