Novel liquid-crystalline PPE-naphthalene copolymers displaying blue solid-state fluorescence

Abstract
Synthesis of poly(p-phenyleneethynylene)s (PPEs) containing 1,5-diethynyl-3,7-di-tert-butylnaphthalene leads to novel phenylene-naphthylene-ethynylene copolymers which show strong blue luminescence in the solid state.