【摘要】 绘制和分析了十二烷基三甲基溴化铵(DTAB)月桂酸钠(SL)组成的表面活性剂混合体系相图系统研究了温度和无机盐等因素对该体系表面活性剂双水相ASTP影响的规律性.结果表明与富含负离子表面活性剂双水相ASTPA相比较富含正离子表面活性剂双水相ASTPC区域更大、更稳定;温度升高,无机盐NaBr的浓度增大,都引起ASTP体系上相体积的减小和下相体积的增加;囊泡普遍存在于ASTP的上下相之中.更多还原

【Abstract】 The phase behavior diagram has been d rawn and analysed in DTAB -SL mixed sy stem and the influences of temperature and inorg anic salt upon"aqueous surfactant two-phase(ASTP)"have been studied systematically.The results show th at ASTP region when cationics is in ex cess(ASTP-C)is larger and stabler than that when anionics is in excess(ASTP-A)(to see Fig.1).The higher the temperature and the i norganic salt concentration(NaBr ),the less ratio of upper to lower volu me (V up /V low )in ASTP system(to see Table 1～2).Vesicles generally existed in upper and lower phases of ASTP.更多还原