双子表面活性剂临界胶束浓度规律研究进展

Advance in regularity research on critical micelle concentration of Gemini surfactants

欧阳向南¹ 唐善法 2 刘霜³ 梁策¹ 胡小冬¹

长江大学石油工程学院，湖北 荆州 434023 长江大学油气钻采工程湖北省重点实验室，湖北 荆州 434023 中国石化江汉油田分公司勘探开发研究院，湖北 武汉 430223

School of Petroleum Engineering, Yangtze University, Jingzhou 434023, China Key Laboratory of Oil and Gas Drilling and Production Engineering of Hubei Province, Jingzhou 434023, China Research Institute of Exploration and Development, Jianghan Oilfield Company, Wuhan 430223, China

临界胶束浓度是表面活性剂自聚形成胶束的重要参数。双子表面活性剂是具有双亲水基团、双疏水链的表面活性剂，比常规表面活性剂具有更低的临界胶束浓度和更高的表面活性。了解影响双子表面活性剂临界胶束浓度的内在、外在因素，有助于理解分子间的相互作用，分析碳链和联接基团等分子结构对其性能的影响，探究双子表面活性剂的自组织行为，从而更好地发挥双子表面活性剂的高表面/界面活性，开发新型高效表面活性剂。文中介绍了双子表面活性剂临界胶束浓度常用的测定方法，总结了双子表面活性剂疏水基团、联接基团、亲水基团、温度、无机盐等对双子表面活性剂临界胶束浓度的影响，并对影响结果进行了分析。

Critical micelle concentration is an important parameter in surfactants self-assembly behavior. Gemini surfactant is a kind of surfactant with double carbon chain and double hydrophilic group. It has a lower CMC than that of traditional surfactant. This means that it has much higher surface activity. To understand the inner and external factors affecting CMC can help us to understand the interaction between molecules, analyze the influence of molecular structure including carbon chain and spacer group on property, explore Gemini surfactants self-assembly behavior and make better use of good surface/interfacial properties of Gemini surfactants and explore new products. This paper introduced the usual methods of measuring CMC. It also summarized the influences of many parameters such as hydrophobic group, spacer group, hydrophilic group, temperature and salt on CMC and analyzed the results.

10.6056/dkyqt201205027