In the reported experiments, the longitudinal piezoelectric strain of poly(vinylidene fluoride) (PVF//2) films has been measured at room temperature using a high-sensitivity ac capacitance-type dilatometer. The dc bias field dependence of the piezoelectric strain coefficient d//3//3 has been determined. The polarization-related electrostrictive coefficient Q//3//3 obtained is several hundred times larger than the value in normal piezoelectric oxide crystals and is of opposite sign.
|Original language||English (US)|
|Number of pages||7|
|Journal||Journal of polymer science. Part A-2, Polymer physics|
|State||Published - 1983|
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