Properties of side-chain liquid-crystalline polymethylsiloxane

Wen Chang Chiang; Ging-Ho Hsiue; Jang-Jeng Liang; Ping-Ou Chen

doi:10.1117/12.131326

27 October 1992 Properties of side-chain liquid-crystalline polymethylsiloxane

Wen Chang Chiang, Ging-Ho Hsiue, Jang-Jeng Liang, Ping-Ou Chen

Proceedings Volume 1815, Display Technologies; (1992) https://doi.org/10.1117/12.131326
Event: International Symposium on Optoelectronics in Computers, Communications, and Control, 1992, Hsinchu, Taiwan

Abstract

Ferroelectric liquid crystalline polymethylsiloxane with side chains as mesogenic units was synthesized and characterized by polarized microscopy. These compounds are found to show smectic phase in mesophase region and exhibit spontaneous polarization. Spontaneous polarization (Ps) of PS8 is 127 nC/cm² at 30.6 degree(s)C, and its response time is 15 ms at 86.4 degree(s)C. Optic devices are prepared by sandwiching the liquid crystal polymers (LCP) or LC/LCP in between the two ITO layers and their phase transitions are studied. Two stable textures of LC/LCP composite films are formed during different thermal treatments and the films can be applied as an optic memory medium.

Citation Download Citation

Wen Chang Chiang, Ging-Ho Hsiue, Jang-Jeng Liang, and Ping-Ou Chen "Properties of side-chain liquid-crystalline polymethylsiloxane", Proc. SPIE 1815, Display Technologies, (27 October 1992); https://doi.org/10.1117/12.131326

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