烯丙基咪唑离子液体的合成与溶液性能

Synthesis and solution properties of 1-allyl-3-methyl-imidazolium room temperature ionic liquid

室温离子液体氯化1-烯丙基-3-甲基咪唑被合成,利用质谱和NMR对其结构进行了表征。该离子液体与水或乙醇的二相混合液在293.2K的粘度被测定并计算了该混合体系的过量粘度,建立了过量粘度与水或乙醇的摩尔分数的关系。另外,电导率随组分及温度的变化以及电导活化能也被测定,溶液的电导率随温度的升高及溶剂量的增加而增大。

The room temperature ionic liquid 1-allyl-3-methyl-imidazolium [amim]CI was synthesized. The chemical structure of [amim]CI was characterized by using mass spectrograph and NMR. The viscosities of [amim]CI + water / ethanol binary mixtures were determined at temperature 293.15 K and the excess logarithm viscosities were calculated. The relationship of the excess logarithm viscosities to the volume fraction of water or ethanol was set up. Furthermore, Conductivity changing with temperature and composition and conductive active energy were measured. Conductivity of solution increases with increasing temperature and solvent volume fraction.