The Behavior of Amphiphile at Oil-Water Interface by Monte Carlo Simulation  

作　　者：潘海华 李啸风 李浩然 刘迪霞 韩世钧 

机构地区：[1]Department of Chemistry,Zhejiang University,Hangzhou 310027, China

出　　处：《Chinese Journal of Chemical Engineering》2003年第4期446-451,共6页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China (No. 29736170)and the Natural Science Foundation of Zhejiang Province(No. RC01051).

摘　　要：A novel simple two-dimensional square-lattice model of amphiphile at oil-water interface is developed,in which oil and water act as solvent and occupy empty sites and amphiphile occupies chains of sites. In this model, the oil-water interface is fixed, And amphiphile molecules will be enriched at the oil-water interface. The interfacial concentration of amphiphile calculated by Monte Carlo method shows that it is easier for the hydrophilic-hydrophobic balanced amphiphile to stay at the interface. And the adsorption of amphiphile increases with the increase of amphiphile concentration and the decrease with temperature.A novel simple two-dimensional square-lattice model of amphiphile at oil-water interface is developed, in which oil and water act as solvent and occupy empty sites and amphiphile occupies chains of sites. In this model, the oil-water interface is fixed, And amphiphile molecules will be enriched at the oil-water interface. The interfacial concentration of amphiphile calculated by Monte Carlo method shows that it is easier for the hydrophilic-hydrophobic balanced amphiphile to stay at the interface. And the adsorption of amphiphile increases with the increase of amphiphile concentration and the decrease with temperature.

关 键 词：AMPHIPHILE ADSORPTION oil-water interface Monte Carlo simulation 

分 类 号：O648[理学—物理化学]