功能液晶聚酯

综述了新型功能液日聚酯材料的大分子链结构、液晶相变温度与应用前景。这类功能液晶聚酯或者其主链含有大量碳碳双键,或者其侧链上含有大量氟碳链节或偶氮链节。功能液日聚酯的玻璃化转变温度和液日相变温度通常比传统高强度、高模量液日聚酯要低,尤其具有高强度、高模量液晶聚酯所不具备的特殊性能,如交联化、凝胶和感光作用,使其可以作为全息储存膜和其他功能材料。

Functional Liquid Crystalline Polyesters

The macromolecular structures, liquid crystalline phase transition temperatures and practical applicability of new kind of functional liquid crystalline polyesters were reviewed. The functional liquid crystalline polyesters containing either a large number of C = C double bonds in the fundamental chains or fluorocarbon or azo segments in the side chains. Their glass transition temperature and liquid .crystalline phase transition temperature was generally lower than that of high strength/ modulus liquid crystalline polyesters. Especially, the functional liquid crystalline polyesters exhibited some special properties such as crosslinking ability, gelation and photosensitiza-tion, indicating that they might serve as a holographic storage film and other functional materials.