화학공학소재연구정보센터
Thermochimica Acta, Vol.302, No.1-2, 77-85, 1997
Differential Scanning Calorimetry of the Processing of Vf2/Vf3 Copolymers
Poly(vinylidene fluoride-trifluoroethylene), VF2/VF3 random copolymers have been noted to exhibit ferroelectricity. To obtain a high level of piezoelectrical activity it is necessary for the copolymer to undergo additional processing. In this study differential scanning calorimetry (DSC) was used to follow the processing of this material for 81/19 and 76/24 mol% compositions. Although DSC peak parameters were found to show a relationship with piezoelectrical activity a leveling effect was noted. Additionally a cold crystallization effect was noted. This effect can be explained if one assumes the paraelectric phase to be a condis crystal transition.