%0 Journal Article
%T Liquid Crystalline ¦Ð-Conjugated Copolymers Bearing a Pyrimidine Type Mesogenic Group
%A Kohsuke Kawabata
%A Hiromasa Goto
%J Materials
%D 2009
%I MDPI AG
%R 10.3390/ma2010022
%X Phenylene-thiophene-based liquid crystalline ¦Ð-conjugated copolymers bearing mesogenic groups as side chains were synthesized via a Stille polycondensation reaction and confirmed to exhibit a nematic liquid crystal phase at appropriate temperatures. The formation of a nematic phase, but not a smectic phase indicates cooperation of the main chain and side chain in the formation of a nematic main-chain/side-chain liquid crystal phase. The generation of polarons in the main chain as charge carriers during in-situ vapor doping of iodine is confirmed to increase with a doping progresses, exhibiting Dysonian paramagnetic behavior typical of conductive polymers.
%K Liquid crystal
%K conductive polymer
%K electron spin resonance
%U http://www.mdpi.com/1996-1944/2/1/22