2009•Yunnan Daxue xuebao. Shehui kexue banRequires access

Synthesis and mesomorphism of novel cyclotriphosphazene-tethered imidazolium ionic liquid crystals

Xiaohong Cheng

Abstract

Novel cyclotriphosphazene-tethered imidazolium salts were synthesized by quaternization of polycatenar imidazole mesogenic units which containing extended aromatic core,with hexakis-(4-chloromethylphenoxy)triazatriphosphinine.The mesophase behavior of such compounds was investigated.Imidazole mesogenic unit containing only one terminal chain gives rise to Smectic phases.While mesogenic unit containing three long terminal chains exhibits columnar mesophase.

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Key concepts: Mesogen, Mesophase, Imidazole, Liquid crystal, Polymer chemistry, Chemistry, Ionic liquid, Materials science