Gas Chromatographic Separation of Structural Isomers on Cholesteric Liquid Crystal Stationary Phase Materials
作者:Yi-Wen Lee、Chih-Hung Lin
DOI:10.14233/ajchem.2013.13927
日期:——
A new series of liquid crystalline polysiloxanes with a very wide range of mesomorphic temperatures had been prepared. They contained 4-cholesteryl-(10-undecen-1-yloxy)biphenyl- 4¢-carboxylate mesogenic and 4-biphenyl-4¢-allyloxybenzoate mesogenic side groups displaying an enantiotropic cholesteric phases. The mesomorphic polysiloxane specimen with the widest temperature range was used as the stationary phase in a gas chromatography capillary column and it showed high column efficiency and made great promise for the separation of different structure isomer compounds.
制备了一系列具有非常宽泛液晶温度的液态晶体聚硅氧烷。这些聚硅氧烷包含了4-胆固醇基-(10-十一碳烯-1-氧基)联苯-4¢-羧酸酯液晶侧链和4-联苯-4¢-烯丙氧基苯甲酸酯液晶侧链,呈现出对映异构胆甾相。具有最宽温度范围的液晶聚硅氧烷样品被用作气相色谱毛细管柱的固定相,显示出高柱效能,并有望用于不同结构异构化合物的分离。