摘要
研究了脂肪酸盐和烷基吡啶盐混合水溶液中双水相的形成规律和性质．考察了形成双水相的组成范围和烷基碳链长的影响。测定了两相的密度及化学组成．应用电子显微镜观察了两相的微观结构．结果表明，两相均存在囊泡结构．两相含水均在95％以上．上相为表面活性剂富集的囊泡絮凝相，浓度远远大干下相，相差均在二十倍以上．下相为含有分散的囊泡的表面活性剂稀溶液．
The Phenomenon of two diluite aqueous phases coexisting in imxed aquous solutitions of carboxylates and alkyl pyrridmmin salts were investigated This phenomenonoccurs in limit range of compositon of system:limited carbon muuber in hydrophobic groups of surfactants: lim-ited miolar ratio of catiomic and amome surfactants:surfactants:and limited concentration of surfactants,The coexistent two phases contam large amount of water ,more than 95% in-both The upper phases are richer in surfactants being more than twenty fold of the concentration in lower phase Vesicular structure exists iu upper and lowcr Phases, which are aggregated in upper phases and dispersed in the lower. The molecular ratio of czttiomcs and aniomcs is more close to 1 in upper phase than that in lower phase. The concentration of inorgamc ions is almost the same in both phases.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1999年第2期110-115,共6页
Acta Physico-Chimica Sinica
基金
国家自然科学基金!29733110
关键词
表面活性剂
双水相
羧酸盐
烷基吡啶盐
Aqueous surfactant two phase,Vesicles, Mixed cationic-amonic system,Carboxylates, Alkyl pyrridinium salts
