Synthesis and Phase Behavior of Side Chain Liquid Crystalline Polymer with Substituted Biphenyl Group

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (10): 1479.

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Synthesis and Phase Behavior of Side Chain Liquid Crystalline Polymer with Substituted Biphenyl Group

HUANG Zhi-Hua¹, YANG Chun-Cai¹, TANG Xin-Yi¹, ZHOU En-Le²

1. Department of Chemistry, Jilin University, Changchun, 130023;
2. Laboratory of Polymer Physics, Changchun Institute of Applied Chemistry, Academic Sinica

Received:1992-11-03 Revised:1993-02-28 Online:1993-10-24 Published:1993-10-24

Abstract

Abstract: Liquid crystalline polymer with substituted biphenyl group in the side chain has been prepared by radical polymerization.The structures of monomer and polymer were confirmed by analyses of FTIRand ¹H NMR.Its phase transformation was investigated by polarized optical microscope and DSC.The results showed that the monomer and polymer could form a LCphase in certain temperature range, the LCphase of monomer was confirmed to be smectic phase by WAXS, and that of polymer was nematic phase.

Key words: Radical polymerization, 4,4'-dihydroxy-biphenyl, Side chain liquid crystalline polymer

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HUANG Zhi-Hua, YANG Chun-Cai, TANG Xin-Yi, ZHOU En-Le. Synthesis and Phase Behavior of Side Chain Liquid Crystalline Polymer with Substituted Biphenyl Group[J]. Chem. J. Chinese Universities, 1993, 14(10): 1479.

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Synthesis and Phase Behavior of Side Chain Liquid Crystalline Polymer with Substituted Biphenyl Group

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