Liquid crystalline poly(ester-amide)s containing chiral groups for second harmonic generation

摘要

The synthesis, characterization and evaluation of optical properties of a series of new copoly(ester-amide)s containing donor-acceptor amino-nitro functionality and a chiral building unit are reported. The poly(ester-amide)s are highly thermally stable, possess high Tg values and show liquid crystalline behavior over a wide temperature range. The optical purity of the polymers is maintained even at high temperature. High temperature stability of the second harmonic generation efficiency was observed for the copolymers.