Conjugated Polymer Liquid Crystal Solutions: Control of Conformation and Alignment.
Title
Conjugated Polymer Liquid Crystal Solutions: Control of Conformation and Alignment.
Publication Type
Journal Article
Year of Publication
2002
Authors
Journal
Journal of the American Chemical Society
Volume
124
Pagination
9670–9671
ISSN
0002-7863
Keywords
alignment conformation conjugated polymer control soln liq crystal, fluorescence transport conjugated polymer soln liq crystal, hexylcyclohexyl isothiocyanatobenzene nematic liq crystal solvent conjugated polymer, phenylene ethynylene conjugated polymer triptycene group prepn soly, polyphenylene polyacetylene triptycene group prepn dissoln liq crystal
Abstract
Fluorescent poly(phenylene vinylene)s and poly(phenylene ethynylene)s contg. rigid triptycene groups were prepd. using Suzuki and Sonogashira protocols. The triptycene groups impart extraordinary soly. to conjugated polymers even in the absence of flexible side chains; addnl. t-Bu groups were introduced, which were found to further enhance soly. Stable solns. of poly(phenylene vinylene)s and poly(phenylene ethynylene)s in nematic liq. crystal 1-(trans-4-hexylcyclohexyl)-4-isothiocyanatobenzene (6CHBT