Liquid-crystalline polyesters have been prepared from the mesogenic unit 4,4'-dihydroxybicyclohexyl and linear aliphatic diacids, which served as a flexible spacer. The polymers were characterized by optical microscopy, thermal analysis, X-ray diffractometry, and conformational analysis. The polymers have been assigned as passing through the following thermotropic transition sequences: crystal-smectic G-isotropic. This behavior is compared with that of the corresponding polymers prepared from 4,4'-dihydroxybiphenyl.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.