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Wide‐band reflective polarizers from cholesteric liquid crystals with stable optical properties
Author(s) -
Xiao Jiumei,
Cao Hui,
He Wanli,
Ma Zheng,
Geng Jun,
Wang Liping,
Wang Ge,
Yang Huai
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.26561
Subject(s) - polarizer , materials science , monomer , liquid crystal , polymer , siloxane , crystallization , side chain , composite material , optics , polymer chemistry , chemical engineering , optoelectronics , birefringence , physics , engineering
A wide‐band reflective polarizer from glassy siloxane cyclic side‐chain liquid crystals with stable optical properties was developed. The pitch gradient that formed was first stored by rapid cooling, which, by preventing the crystallization of glassy materials, was a very easy way of keeping the molecular arrangement. Then, the polymer network that formed through UV‐initiated chain crosslinking of the photopolymerizable monomers in the reflective polarizer further stabilized the cholesteric structure stored by the former rapid cooling. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007