肉豆蔻酸单乙醇酰胺硫酸酯盐的物化性能  

STUDY ON PHYSICO-CHEMICAL PROPERTIES OF SODIUM MYRISTIC ACID MONOETHANOLAMIDE SULFATE

作　　者：葛虹[1] 张之强 孙玲新 

机构地区：[1]广东食品药品职业学院,广东广州510520 [2]中国铝业山东分公司研究院,山东淄博255052 [3]许昌市安全生产监督管理局,河南许昌461000

出　　处：《精细石油化工》2009年第2期1-3,共3页Speciality Petrochemicals

摘　　要：通过用滴体积法对合成纯化所得肉豆蔻酸单乙醇酰胺硫酸钠（MSN）表面张力测定发现，MSN的表面过剩浓度随温度的增加而有所减小，表面分子面积受温度影响；温度的增加使MSN降低表面张力的效能和效率都提高；随着温度的增加，MSN的cmc升高。T△Smic对△Gmic的贡献比△Hmic大，MSN胶束化的主要驱动力是熵变。The surface tension of sodium myristic acid monoethanolamide sulfate （MSN） was synthesized and the purity was determined by drop volume method. It was found that the surface excessive concentration of MSN decreases with the increase of temperature; the molecular surface area of MSN at the surface of aqueous solution is affected by the temperature; the effectiveness and efficiency of MSN in decreasing surface tension increases with the increase of temperature; CMC value increases with temperature. Entropy change is the main driving force for the micelle formation of MSN.

关 键 词：肉豆蔻酸单乙醇酰胺硫酸酯钠 表面张力 胶束 阴离子 

分 类 号：TQ423.32[化学工程]