摘要
将手性碳原子引入分子结构,合成了6个具有光学活性的联苯酯类液晶,用旋光检测、XRD、DSC、POM等对其进行表征,结果表明6个化合物都是胆甾型互变液晶,液晶性能良好;柔性端基链的增长有利于胆甾相指纹织构的稳定存在,端基链最长的化合物存在焦锥织构和指纹织构间的可逆转变。
In this paper, a series of optically active diphenylnate liquid crystals were prepared. Their liquid crystalline properties were characterized by POM, DSC,XRD and polarimeter. The six chiral liquid crystals are all thermotropic cholesteric liquid crystals exhibiting good liquid crystalline properties. The increasing of the length of flexible chains can stabilize the fingerprint texture and the sample with n=6 show a textural transition reversibled with temperature.
出处
《塑料制造》
2008年第10期72-74,共3页
Plastics Manufacture
关键词
手性
热致液晶
胆甾
指纹织构
Chiral Thermotropic Cholesteric Fingerprint texture
