A main-chain liquid-crystalline oligomer prepared by in situ photopolymerization of an LC monomer having cinnamate moieties

作者：Kihara H^*; Tamaoki N

来源：Macromolecular Rapid Communications, 2006, 27(11): 829-834.

DOI：10.1002/marc.200600108

• cinnamate
• liquid-crystalline monomer
• liquid-crystalline polymers (LCP)
• photopolymerization
• [2+2] photocycloaddition
• triplet sensitizer

A liquid-crystalline (LC) compound, having a cinnamate moiety on each end of the molecule, was synthesized and irradiated with UV light in its LC phase in the presence of a triplet sensitizer. Various measurements of the irradiated sample revealed that the linearly structured LC oligomer were formed by [2+2] cycloaddition of the cinnamate moieties, and that the resultant cyclobutane units dominantly assumed an anti head-to-head configuration.

• 出版日期2006-6-2