Polymorphism of poly(vinylidene fluoride) induced by poling and annealing
- 1 January 1979
- journal article
- Published by EDP Sciences in Journal de Physique
- Vol. 40 (12) , 1145-1148
- https://doi.org/10.1051/jphys:0197900400120114500
Abstract
In stretched poly(vinylidene fluoride) films, the transition from unpolar α-form to a polar form (αp) is produced by pohng at 80 °C by an electric field of 1 MV/cm. This oriented form has the same lattice constants as α-form but is associated with extra diffuse reflections. This form and the diffuse reflections disappear by annealing above 170 °C and give an oriented and more stable form (α') in which the chain has the T3GT3G- conformationKeywords
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