Ferroelectric-to-paraelectric phase transition of vinylidene fluoride-trifluoroethylene copolymer
- 1 February 1981
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 52 (2) , 948-952
- https://doi.org/10.1063/1.328783
Abstract
The ferroelectricproperties of vinylidene fluoride‐trifluoroethylene copolymer were studied. The infrared absorption spectra and x‐ray diffraction patterns of the melt‐crystallized film suggested the similar crystalline form to the polar form I of polyvinylidene fluoride. It was found that the ferroelectric‐to‐paraelectric phase transition occurred at 70 °C and was the first order in the melt‐crystallized copolymerfilm by studying the dielectric constant,piezoelectric constant,D‐E hysteresis loop, and DSC measurement. The Curie constant was 2200 K. The phase transition was accompanied by the expansion of the crystal lattice.This publication has 33 references indexed in Scilit:
- High-pressure crystallization of poly(vinylidene fluoride)Journal of Applied Physics, 1979
- Poling rates for films of polyvinylidene fluorideApplied Physics Letters, 1977
- Piezoelectricity and Pyroelectricity of PolymersJapanese Journal of Applied Physics, 1976
- Effects of aging on thermally stimulated currents in poly(vinylidene fluoride)Applied Physics Letters, 1976
- Space charge, thermal expansion, and pyroelectricity in polymersJournal of Applied Physics, 1976
- Reversible pyroelectricity and inverse piezoelectricity in polyvinylidene fluorideJournal of Applied Physics, 1974
- Dipole reorientation in polyvinylidene fluorideJournal of Applied Physics, 1974
- Crystal Structures of Three Crystalline Forms of Poly(vinylidene fluoride)Polymer Journal, 1972
- Effects of a static electric field upon dielectric properties of poly(vinylidene fluoride) and poly(vinyl fluoride)Journal of Polymer Science Part A-2: Polymer Physics, 1971
- The Piezoelectricity of Poly (vinylidene Fluoride)Japanese Journal of Applied Physics, 1969