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合成了四种侧链聚硅氧烷液晶,并用做毛细管气相色谱固定液。其中两种有较高的相变温度,另外两种有较低的相变温度。这几种液晶可涂渍在弹性石英毛细管柱上,适于分离各种位置异构体。报告了这些毛细管柱的保留行为,柱效和热稳定性等。
Four side chain polysiloxane liquid crystals were synthesized and used as stationary phase capillary gas chromatography. Two of them have a higher phase transition temperature, the other two have a lower phase transition temperature. These types of liquid crystal can be coated in flexible quartz capillary column, suitable for the separation of various positional isomers. The retention behavior, column efficiency and thermal stability of these capillary columns were reported.