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Preparation and characterization of polymer‐stabilized cholesteric texture cells using (+)‐bornylmethacrylate 1
Author(s) -
Liu JuiHsiang,
Tsai FuRen,
Tsai TsungYueh
Publication year - 2000
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/1099-1581(200005)11:5<228::aid-pat959>3.0.co;2-d
Subject(s) - monomer , materials science , methacrylate , polymerization , polymer , liquid crystal , texture (cosmology) , biphenyl , polymer chemistry , chemical engineering , organic chemistry , composite material , optoelectronics , chemistry , image (mathematics) , artificial intelligence , computer science , engineering
Chiral monomeric (+)‐bornyl methacrylate (BMA) was synthesized from (+)‐camphor. The normal mode of polymer‐stabilized cholesteric texture (PSCT) liquid crystal cells was fabricated using 97.3 wt% of liquid crystal (E48/CB15 = 92/8) and 2.7 wt% of various compositions of chiral and achiral monomers. BMA was used as a chiral monomer and, 4,4′‐bis[6‐(acryloyloxy)hexyloxy]biphenyl and ethyleneglycol dimethacrylate were used as achiral difunctional monomers. The electro‐optical characteristics and the morphology of the PSCT cells with chiral and achiral polymer materials were investigated. The effects of monomer concentration and polymerization conditions of the chiral (+)‐bornyl methacrylate on the electro‐optical characteristics and morphology of PSCT cells were also investigated. It was found that the electro‐optical characteristics of PSCT cells were improved by using the chiral monomer of (+)‐bornyl methacrylate effectively. A PSCT cell was fabricated, and the reversible turbid and transparent changes were examined by applying a 15 V electric field. Copyright © 2000 John Wiley & Sons, Ltd.