杯芳烃固定液分子识别的热力学性质

Thermodynamic Properties of Molecular Recognition on Calixarene Stationary Phases

用毛细管气相色谱法测得了５组芳香族位置异构体在杯芳冠醚聚硅氧烷（Ｃ［４］Ｃ５＿ＰＳＯ），二乙氧基杯芳烃聚硅氧烷（Ｃ［４］Ｅ＿ＰＳＯ）和二丁氧基杯芳烃聚硅氧烷（Ｍ＿Ｃ［４］Ｂ＿ＰＳＯ）３种杯芳烃固定液上的热力学参数ΔＨ、ΔＳ、ΔＧ，然后用热力学及超热力学的方法探讨了杯芳烃对异构体的分子识别特性和保留机理。

Five groups of aromatic isomers were separated on three capillary columns,namely,calixcrown polysiloxane (CC5_PSO),diethoxy calixarene polysiloxane (CE_PSO) and dibutoxy cali_ xarene (M_CB_PSO).Thermodynamic parameters (Δ H ,Δ S and Δ G ) of these compounds were obtained on the three columns.Molecular recognition and resolution about calixarene were discussed from thermodynamic and superthermodynamic aspects.