Phase transitions in ferroelectric polymer films

Phase transitions in ferroelectric films of vinylidene fluoride-trifluoroethylene (70/30) copolymer are studied by differential scanning calorimetry (DSC). Films 40 nm thick are prepared from solution by centrifugation. DSC thermograms reveal peaks typical of the first-order phase transition that ar...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2012-07, Vol.76 (7), p.747-748
Main Authors: Plakseev, A. A., Kharitonova, E. P., Verkhovskaya, K. A.
Format: Article
Language:English
Subjects:
Cooling curves
Differential scanning calorimetry
Enthalpy
Ferroelectric materials
Glass transition temperature
Hadrons
Heat measurement
Heavy Ions
Nuclear Physics
Phase transitions
Physics
Physics and Astronomy
Polymer films
Proceedings of the International Interdisciplinary Simposium “Ordering in Minerals and Alloys” OMA-14
Thick films
Vinylidene
Vinylidene fluoride
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Summary:Phase transitions in ferroelectric films of vinylidene fluoride-trifluoroethylene (70/30) copolymer are studied by differential scanning calorimetry (DSC). Films 40 nm thick are prepared from solution by centrifugation. DSC thermograms reveal peaks typical of the first-order phase transition that are associated with heat absorption and heat release, and the enthalpies of the transitions are determined. Upon cooling, a kink in the slope of the DSC curve that determines the temperature of the glass transition is observed at T = −30°C.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873812070271