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Low-frequency dielectric dispersion and pyroelectric effect in ferroelectric vinylidene fluoride-trifluoroethylene copolymer in phase transitions

K.A. Verkhovskaya, N.D. Gavrilova, V.K. Novik, I.A. Malyshkina, T.B. Frolova

Moscow University Physics Bulletin 1997. 52. N 3. P. 55

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Annotation

The investigations of the dielectric constant, the pyroelectric coefficient and thermodepolarization currents both of a pure and a rhodamine-doped copolymer of vinylidene fluoride with trifluoroethylene (P(VF-TFE)) (70/30) have been carried out over a wide range of frequencies and temperatures. The temperature relationships obtained experimentally point to the reorganization of the structure of the amorphous phase of pure (P(VF-TFE)) in the temperature range of 313-323 K. The effect of doping on the specific feature of the copolymer has been studied.

Authors
K.A. Verkhovskaya, N.D. Gavrilova, V.K. Novik, I.A. Malyshkina, T.B. Frolova
Department of Physics of Polymers and Crystals, Department of General Physics and Wave Processes, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
Issue 3, 1997

Moscow University Physics Bulletin

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