Main-Chain Ferroelectric Liquid Crystal Oligomers by Acyclic Diene Metathesis Polymerization

摘要

Ferroelectric liquid crystals (FLCs) are liquids with a thermodynamically stable polar supermolecuiar structure. This, combined with the excellent processibility of liquid crystals, makes FLCs an attractive approach for creation of organic second-order nonlinear optical (NLO) materials. Recently we have outlined an approach for obtaining a useful magnitude of the second-order NLO susceptibility in low molar mass FLCs. In addition, side chain FLC polymers (FLCPs) and oligomers can exhibit a structuresimilar to the low molar mass analogs, but with the processing advantages of LC polymers. Herein we report the initial results of a program aimed at the preparation of main-chain FLC oligomers and polymers by acyclic diene metathesis (ADMET) polymerization.