摘要
针对表面活性剂临界胶团浓度和胶团聚集数的预测问题,从热力学角度出发,考虑了尾基转换自由能、尾基变形自由能、胶团中心 水界面自由能和头基空间相互作用的影响,建立了单一非离子型表面活性剂自组装模型.利用该模型可直接预测非离子型表面活性剂自组装的临界胶团浓度、胶团聚集数和胶团尺寸分布,与文献数据进行了比较,二者吻合较好.
It is more important to predict the critical micelle concentration(CMC)and aggregate number and to determine the properties of surfactant solution.In this article,a model for selfassembly of a nonionic surfactant is established based on thermodynamic principles,which involves free energy change resulted from the tailsolvent interactions,micellesolvent interface interactions,and headhead interactions.In comparison with the references data,it is indicated that the CMC, the aggregate number,and the size distribution of micelles can be estimated well by the model.
出处
《天津大学学报（自然科学与工程技术版）》
EI
CAS
CSCD
北大核心
2003年第2期152-155,共4页
Journal of Tianjin University：Science and Technology
基金
国家自然科学基金资助项目(29906006)
中国石化科技基金资助项目(X599011).
关键词
表面活性剂
自组装
临界胶团浓度
胶团聚集数
surfactant
self-assembly
critical micelle concentration
aggregate number
