POLYMERIZABLE LIQUID-CRYSTAL COMPOSITION AND LIQUID-CRYSTAL FILM MADE FROM THE COMPOSITION
申请人:Nippon Oil Corporation
公开号:EP1803773A1
公开(公告)日:2007-07-04
A polymerizable liquid crystalline composition comprises a side chain liquid crystalline polymer obtained by radical-copolymerizing a (meth)acrylic compound has an optically active site and a (meth)acrylic compound having an oxetanyl group, and a cation generator and thus have no functional group the synthesis of which is difficult, such as an epoxy group. The use of the polymerizable liquid crystalline composition provides a cholesteric liquid crystal film which is excellent in a capability of retaining the orientation after being aligned and fixed in a liquid crystal orientation and in mechanical strength without the necessity of a complicated operation such as photo irradiation under an inert gas atmosphere.
一种可聚合液晶组合物包含一种侧链液晶聚合物,该聚合物是通过将具有光学活性位点的(甲基)丙烯酸化合物和具有氧杂环丁酰基的(甲基)丙烯酸化合物与阳离子发生器进行自由基共聚而得到的,因此不含环氧基等难以合成的官能团。使用这种可聚合液晶组合物可以得到一种胆甾型液晶膜,这种膜在对齐和固定液晶取向后具有优异的取向保持能力和机械强度,而无需在惰性气体环境下进行光照射等复杂操作。