Cd(P507)_2皂化盐反向胶束形成过程的热力学研究  

Thermodynamics Study on the Formation of Reversed Micelle in Cd(P507)_2 Organic Phase

作　　者：王高升[1] 

机构地区：[1]枣庄学院化学化工系,山东枣庄277160

出　　处：《新乡学院学报》2010年第2期28-30,共3页Journal of Xinxiang University

摘　　要：研究了P507皂化盐Cd(P507)2在不同有机溶剂中形成反向胶束过程的问题,获得了Cd(P507)2在有机相中的临界胶束浓度(CMC)、聚集数、胶束生成常量和热力学函数。所得热力学函数△rGθm为负值,并随溶剂碳原子数的增加而减少。△rHθm为正值,且随溶剂碳链的增长而增大,说明形成反向胶束的过程为吸热过程,△rSθm值表明,形成胶束的过程为熵增加过程,且溶剂碳原子数越多熵增加得越快。由此可以断定,形成胶束的这一过程主要为熵控制过程。The process of the formation of reversed micelle in saponification-salt of Cd（P507）2 in organic solvent has been studied. The critical micelle concentration（CMC）, aggregation number, micelle formation constant and thermodynamic functions have been calculated. The Gibbs free energy is negative, which decreases with the growth of the number of solvent carbon atoms. The Enthalpy is positive, and increases with the growth of solvent carbon chain, which indicates the process of formation of reversed micelle is endothermic process, the Entropy values indicates that the formation of micelles during the process of entropy increases, and the more the number of carbon atoms in solvent, the faster the entropy increases. It can be concluded that the formation of micelles in this process is mainly entropy controlled process.

关 键 词：Cd(P507)2 滴定微量量热法 反向胶束 临界胶束浓度 热力学函数 

分 类 号：O642.1[理学—物理化学]