Photoresponsive Liquid Crystalline Copolymers Bearing a p-Methoxyazobenzene Moiety

Dong Hoon Choi, Suk Hoon Kang, Joon Youl Lee, Asit Baran Samui

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Mesogenic and azo monomers were synthesized and copolymerized to obtain two copolymers composed of methacrylate and itaconate backbone. Glass transition temperatures of the copolymers were found to be slightly higher than ambient temperature. Both the copolymers showed liquid crystalline properties. Trans-cis isomerization in film state was observed under UV-irradiation with a light of 365 nm. Regarding the photochemical phase transition behavior, the transition rate of nematic-to-isotropic state was slightly faster in the methacrylate copolymer during irradiation at 365 nm and the rate of the reverse transition was much faster in itaconate copolymer under thermal effect.

Original languageEnglish
Pages (from-to)1179-1184
Number of pages6
JournalBulletin of the Korean Chemical Society
Volume19
Issue number11
Publication statusPublished - 1998 Nov 20

ASJC Scopus subject areas

  • Chemistry(all)

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