Dynamic Study of Gemini Surfactant and Single-chain Surfactant at Air/Water Interface

被引：0
|
作者：
Yi Jian CHEN1
机构：
来源：
Chinese Chemical Letters | 2005年 / 05期
关键词：
Molecular dynamics simulation; gemini surfactant; air/water interface;
D O I：
暂无
中图分类号：
O647.2 [表面活性物质的化学];
学科分类号：
摘要：
Molecular dynamics (MD) simulation are used to study the properties of gemini surfactant of ethyl-α,ω-bis(dodecyldimethylammonium bromide) (C12C2C12) and dodecyl- trimethylammonium bromide (DTAB) at the air/water interface, respectively. In the two systems, the surfactant concentrations are both 28 wt. %, and other conditions are also the same. After reaching the thermodynamic equilibrium, the concentration profiles, the radial distributions functions (RDF) and the mean squared displacement (MSD) are investigated. The results reveal that the surface activity of C12C2C12 surfactant is higher than DTAB surfactant.
引用
收藏
页码：688 / 690
页数：3
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