Abstract

AbstractTemperature dependent Brillouin scattering studies of PVF2 films stretched to various stretch ratios have been carried out. Elastic constants for unstretched and stretched films have been obtained as functions of temperature. The elastic constant C33 of the stretched films has a greater temperature dependence than that of unstretched films. To elucidate the effect of the surrounding amorphous matrix on the Brillouin spectrum of semicrystalline PVF2 film, we carried out Brillouin scattering studies of films made from blends of PVF2 and PMMA.

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