Y. Kosaka, Takashi Kato, T. Uryu
May 1, 1994
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0
Influential Citations
41
Citations
Journal
Macromolecules
Abstract
Side-chain liquid-crystalline copolymers containing a mesogenic (carbazolylmethylene)aniline group as an electron donor and a mesogenic (4-substituted benzylidene)aniline group with various electronegative groups were prepared. The copolymer prepared by copolymerization of 4-[[6-(methacryloyloxy)hexyl]oxyl-N-[(9-methylcarbazol-2-yl)methylene]aniline with 4-[[6-(methacryloyloxy)hexyl]oxy]-N-(4'-nitrobenzylidene)aniline exhibited smectic phases when the proportion of the mesogenic carbazolyl unit was in the range of 0.26-0.68, though the smectic phase did not appear in both homopolymers prepared from the individual monomers. The copolymer with the proportion of the carbazolyl group of 0.53 exhibited a wide smectic phase from 63 to 185°C