混合极性溶剂乙二醇/水中正负离子表面活性剂SDS/CTAB的界面性质研究  

Study of surface properties of SDS/CTAB mixed system in mixed solvent of ethylene glycol and water

作　　者：凌锦龙[1] 莫勤华[1] 练小祥[1] 

机构地区：[1]湖州师范学院生命科学学院,浙江湖州313000

出　　处：《化学研究与应用》2008年第10期1363-1366,共4页Chemical Research and Application

摘　　要：The surface properties of sodium dodecylsulfate(SDS) and hexadecyl trimethyl amine bromide(CTAB) in the mixed solvent of ethylene glycol and water,which volume proportion is 1:1,has been studied by measuring the surface tension.It was shown that the mixed system has the smaller surface tension when the SDS and CTAB are equimolar.In the meantime,composition of mixed surface adsorption layers and micelles,and their molecular interaction parameters have been calculated by iterative method according to the regular solution theory.The results showed that the mixed system has great synergistic effects on the surface tension reduction and mixed micelle formation.The surface properties of sodium dodecylsulfate （SDS） and hexadeeyl trimethyl amine bromide （CTAB） in the mixed solvent of ethylene glycol and water,which volume proportion is 1 ： 1 ,has been studied by measuring the surface tension. It was shown that the mixed system has the smaller surface tension when the SDS and CTAB are equimolar. In the meantime,composition of mixed surface adsorption layers and micelles ,and their molecular interaction parameters have been calculated by iterative method according to the regular solution theory. The results showed that the mixed system has great synergistic effects on the surface tension reduction and mixed micelle formation.

关 键 词：混合极性溶剂 正负离子表面活性剂 表面性质 协同效应 

分 类 号：O647.2[理学—物理化学]