E. A. Volgina, D. E. Temnov, D. I. Gerasimov, I. S. Kuryndin, V. K. Lavrentyev, S. V. Bronnikov
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引用次数: 0
Abstract
The films with various orientation degrees were produced by polyvinylidene fluoride (PVDF) melt extrusion. The crystalline structure of the oriented films was studied using wide-angle X-ray scattering. The relaxation processes within the temperature range of 273–333 K were investigated using thermally stimulated depolarization (TSD) method. Within examined temperature range, two relaxation processes were observed, which are assumed to be associated with dipolar-segmental motion. The intensity of these relaxation processes declined as the degree of orientation increased. In order to study the influence of crystallinity degree on the observed relaxation processes, the extruded PVDF films were subjected to isometric annealing. It was observed that an increase in the crystallinity degree leads to the growth of thermally stimulated depolarization intensity in the temperature range of 300–310 K and its decrease in the temperature range of 280–290 K.
期刊介绍：
Polymer Science, Series A is a journal published in collaboration with the Russian Academy of Sciences. Series A includes experimental and theoretical papers and reviews devoted to physicochemical studies of the structure and properties of polymers (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed. Online submission via Internet to the Series A, B, and C is available at http://polymsci.ru.
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