侧链液晶聚乙炔的合成及性能表征

Synthesis and Properties of Polyacetylenes Containing Side-Chain Mesogens

取向液晶侧链引入聚乙炔主链促使主链共轭性提高,导致获得电活性和取向性的永久结合。最近,已有不少研究组将聚炔共轭聚合物作为刚性主链应用于制备侧链液晶聚合物。文中主要阐述带有液晶侧链聚乙炔的合成、液晶性及光学性能,并根据侧链液晶基元结构对其进行分类。

The introduction of orientahle pendant mesogenic moieties onto a polyacetylene backbone increases the conjugation in the main chain and yields polymers with a permanent coupling between electro-active properties and order. Recently, the use of a rigid polymer backbone, such as a polyene chain, to prepare side-chain liquid crystalline polymers has been considered with growing interest by various research groups. Focus is on synthesis, liquid-crystallinity, and optical properties of polyacetylenes with side-chain mesogens in this review. An attempt has been made to arrange a structural classification of side-chain liquid crystalline polyacetylenes in terms of mesogenic cores.