Mechanical Relaxation of Poly (Vinylidene Fluoride) and Copolymer of Vinylidene Fluoride and Tetrafluoroethylene in α and β Relaxation Regions
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概要
- 論文の詳細を見る
From torsional stress relaxation measurements on two kinds of poly (vinylidene fluoride) (PVDF) and a copolymer of vinylidene fluoride (VDF) and tetrafluoroethylene (TFE) between -80℃ and +90℃, three relaxations are found and named α_2, α_1 and β in order of descending temperature. The activation energy and relaxation spectrum are determined by the method of reduced variables. It is concluded that the β relaxation is caused by the micro-Brownian motion of amorphous chains, considering the temperature dependence of the relaxation time. The relaxation characteristics of the α_1 and α_2 relaxations for PVDF, VDF-TFE copolymer and polyethylene are shown to be very similar and to be independent of the difference in chemical structure. The α_1 and α_1 relaxations in these polymers are thus thought to be caused by the same molecular mechanisms.
- 社団法人応用物理学会の論文
- 1985-02-20
著者
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Abe Yuji
Advanced Technology R&d Center Mitsubishi Electric Corporation
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Abe Y
Mitsubishi Electric Corp. Hyogo Jpn
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Abe Yoshio
Department Of Materials Science Faculty Of Engineering Kitami Institute Of Technology
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Hideshima T
Hokkaido Univ. Sapporo Jpn
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Kakizaki M
Hokkaido Univ. Sapporo Jpn
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KAKIZAKI Maeko
Department of Applied Physics, Faculty of Engineering, Hokkaido University
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HIDESHIMA Teruo
Department of Applied Physics, Faculty of Engineering, Hokkaido University
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Kakizaki Maeko
Department Of Applied Physics Faculty Of Engineering Hokkaido University
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Hideshima Teruo
Department Of Applied Physics Faculty Of Engineering Hokkaido University
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Abe Yoshio
Department of Materials Science and Engineering, Faculty of Engineering, Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507, Japan
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