一种新脂肪酸衍生物—辛酸三乙醇胺酯的表面活性研究  

Study on the Surface Activity of a Novel FattyAcid Derivative--Triethanolamine Ester ofCaprylic Acid

作　　者：赵国玺[1] 何煦[1] 

机构地区：[1]北京大学化学系,北京市100871

出　　处：《日用化学工业》1993年第1期1-4,共4页China Surfactant Detergent & Cosmetics

摘　　要：通过辛酸与三乙醇胺的直接反应,合成了辛酸三乙醇胺酯,经分离、提纯可得单、双及三辛酸酯。单、双脂有较高的表成活性,与一般非离子表面活性剂相当,三乙醇胺酯在水中部分电离为阳离子,故与阴离子表面活性剂(如十二烷基硫酸钠)有较强的相互作用,其混合体系有很好的表面活性(高于三乙醇胺酯本身)。Triethanolamine esters of caprylic acid had been synthesized by the reaction of caprylic acid with triethanolamine. The crude product was chromatographically separated and purified to obtain the mono - ,di- and tri - caprylic acid esters. The mono -and di -ester have a higher surface activity .being equivalent to that of a nonionic surfactant. The triethanolamine ester partially ionized to cation in water,thus there was a strong interaction between it and anionic surfactant, showing excellent surface activity which is higher than that of triethanolamine ester itself.

关 键 词：表面活性剂 辛酸三乙醇胺 酯 

分 类 号：TQ423[化学工程]