Synthesis of a highly thermally stable octupolar polyimide for nonlinear opticsElectronic supplementary information (ESI) available: detailed synthetic procedures and complete spectroscopic characterisations of compounds 1–4. See: http://www.rsc.org/suppdata/cc/b1/b108099g/
Abstract
A new polyimide with covalently incorporated 4,4′-bis(dialkylaminostyryl)-2,2′-bipyridine