Organometallic NLO Polymers. 4. Organometallic Main-Chain, Side-Chain, and Guest-Host Polymers: A Study of their Orientation and Relaxation Using Second Harmonic Generation.

摘要

Structure-property relationships for local polymer mobility and the net orientation of the organometallic NLO-phores have been investigated using second harmonic generation (SHG). The methacrylate organometallic derivatives were prepared and polymerized with methylmethacrylate. Corona poling and SHG measurements were made under a variety of carefully controlled experimental conditions. In the case of the covalently bound ferrocenyl NLO-phore, temporal stability was greatest for the smaller acceptor group CH=C(CN)2.