正负离子表面活性剂在短链脂肪醇/水中沉淀-囊泡转化和双水相的形成  

Transition from Precipitation to Vesicle and Formation of AqueousTwo-phase in the System of Catanionic Surfactants within ShortChain Fatty Alcohol/Water

作　　者：唐世华[1] 黄建滨[1] 戴乐蓉[1] 王传忠[1] 付宏兰[1] 

机构地区：[1]北京大学物理化学研究所,北京100871

出　　处：《化学学报》2002年第1期1-3,共3页Acta Chimica Sinica

基　　金：国家自然科学基金(NoS. 29733110;29992590-4);国家教委骨干教师资助项目.

摘　　要：自1989年Kaler等[1]在正负离子表面活性剂混合体系中制备了性质稳定的囊泡以来,正负离子表面活性剂体系以其特异的自组织行为受到了人们的关注.1994年肖进新等[2,3]报道了正负离子表面活性剂双水相的形成,并将其用于生物活性物质的萃取分离.In this work a way of transition from precipitation to vesicle through addition of short chain fatty al-cohol was developed. By adding 7% - 14%(V/V) of 1-propanol or 10% - 21%(V/V) of ethanol at 30℃ the precipitation of catanionic surfactant was dissolved to give a two liquid-phase system. The photography of TEM demonstrated that vesicles exist in the lower phase. The phenomenon of double refraction was found in the upper phase.

关 键 词：负离子表面活性剂 囊泡 双水相 脂肪醇 水 溶剂 相行为 沉淀 正离子表面活性剂 混合体系 

分 类 号：O647[理学—物理化学]