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咪唑啉型表面活性剂组成微乳液的热力学性质
Thermodynamic Properties of Microemulsion with Imidazolinium Surfactants
【摘要】 由咪唑啉型表面活性剂、醇、水和正十六烷组成微乳液,探讨了该微乳液中醇从油相转移到界面相时的自由能变化及温度对自由能变化的影响,算得了熵变和焓变。
【Abstract】 The microemulsion is composed of imidazolinium surfactant, oil(n-hexadecane), water and alcohol.The systems were studied thermodynamically by means of dilution to determine the standard free energy for alcohol to tranfer from oil phase in the interfacial region.From the effects of temperature, the entropy and enthapy were calculate.The effect of chain length is described. It is found that the thermodynamic functions change linearly with the increase of the number of carbon (n) in the alcohol.The relationship between the thermodynamic quantities and the alkyl chain length of the surfactant was determined.
【关键词】 微乳液;
热力学性质;
咪唑啉型表面活性剂;
【Key words】 Microemulsion; Thermodynamic properties; Imidazolinium surfactant;
【Key words】 Microemulsion; Thermodynamic properties; Imidazolinium surfactant;
【基金】 国家自然科学基金
- 【文献出处】 高等学校化学学报 ,CHEMICAL RESEARCH IN CHINESE UNIVERSITIES , 编辑部邮箱 ,1995年09期
- 【分类号】O647.2
- 【被引频次】10
- 【下载频次】119