单取代侧链液晶聚炔的相结构

Phase Structures of Monosubstituted Side-Chain Liquid Crystalline Polyacetylenes

侧链液晶聚炔由于具有潜在的导电性能和液晶性能而得到越来越多的关注。本文综述了单取代侧链液晶聚炔主链的立体构型与构象及形成的柱状相结构、近晶相、溶致液晶相及外场中形成的相结构。旨在介绍主链构象、间隔基长度、液晶基元的结构和尾链长度等因素对其相结构的影响。

More and more interests have been received on side-chain liquid crystalline polyacetylenes for their potential applications in the electronic conducting properties and the liquid crystalline properties.In this paper,we discuss the stereostructural configuration and conformers of the main chain,columnar phase,smectic phase,lyotropic phase and self-assembly in selective solvent and phase behavior in external field of monosubstituted sidechain liquid crystalline polyacetylenes,try to introduce the influence of stereostructural configuration and conformer of the main chain,the length of the spacer,the structure of the mesogens and the length of the tail on the phase structures.