Nematic Liquid Crystals Dispersed in a Ferroelectric Copolymer of Vinylidene Fluoride and Trifluoroethylene
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概要
- 論文の詳細を見る
We constructed polymer-dispersed liquid crystals which consisted of nematic liquid crystal 4$'$-n-pentil-4-cyanobiphenyl (5CB) and a ferroelectric copolymer of vinylidene fluoride and trifluoroethylene [P(VDF/TrFE)] by using a solvent-induced phase separation method. The hysteresis between the dielectric displacement and the external electric field was observed simultaneously with the electrooptical behavior in the poling process of the sample. The memory of the applied electric field appeared as a peak shift in the electrooptical dependence. This memory decayed on the order of 100 s. We consider that this decay was due to the screening of the spontaneous polarization of P(VDF/TrFE) by the redistribution of conductive charges in the crystal region of P(VDF/TrFE).
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2003-07-15
著者
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Takahashi Tomoyuki
Department of Cardiology Regeneration&Advanced medical Science, Graduate School of Medicine, Gifu Un
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Shimizu Takeshi
Department Of Biochemistry And Genome Biology Hirosaki University Graduate School Of Medicine
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Koda Tomonori
Department Of Applied Physics Faculty Of Engineering Nagoya University
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Nishioka Akihiro
Department Of Materials Science And Engineering Faculty Of Engineering Yamagata University
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Ikeda Susumu
Department Of Applied Chemistry Faculty Of Science And Engineering Saga University
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Shimizu Takeshi
Department of Polymer Science and Engineering, Faculty of Engineering, Yamagata University, Yonezawa 992-8510, Japan
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Nishioka Akihiro
Department of Polymer Science and Engineering, Faculty of Engineering, Yamagata University, Yonezawa 992-8510, Japan
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Imai Shin
Department of Polymer Science and Engineering, Faculty of Engineering, Yamagata University, Yonezawa 992-8510, Japan
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Ikeda Susumu
Department of Polymer Science and Engineering, Faculty of Engineering, Yamagata University, Yonezawa 992-8510, Japan
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