Pyroelectricity in Polytrifluoroethylene

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Abstract
Pyroelectricity has been observed in polytrifluoroethylene, which was strongly enhanced in the sample subjected to rapid quenching from the melt. The pyroelectric coefficient showed anomalous behavior of changing signs twice over the temperature range of 100 to 330 K. On this point, the nature of the pyroelectricity in polytrifluoroethylene was greatly different from that in other pyroelectric fluorocarbon polymers. It was suggested from the temperature dependence of the pyroelectric coefficient that the origin of the pyroelectricity was the dipole motions in the amorphous region.