摘要
在SDS/Tween60/正己醇/环己烷/水形成的反胶团复配体系中,电导率(κ)与水和表面活性剂的摩尔比(W0)关系曲线上存在最大值,随着复配体系中SDS的摩尔分数(xSDS)增大,最大增溶水量(W0,max)向W0值更大的方向移动.xSDS≤0.5时,随着xSDS的增大,W0,max所对应的电导率值增大;xSDS≥0.5时,其电导率值减小.在AOT/Tween60/环己烷/水体系中,出现了与SDS/Tween60/正己醇/正己烷/水体系类似的现象,但W0,max所对应的电导率值,随着xAOT的增大而增大,不会出现极大值,两者的差异主要是由于助表面活性剂醇的影响.在SDS/TritionX-100/正己醇/环己烷/水体系中也印证了该结论.
In the SDS/Tween60/hexanol/cyclohexane/water system,a conductivity maximum was observed in the conductivity(κ) and molar ratio of water to surfactants(W0) curves for mixed reverse micelles.The W0,max moved to a bigger W0 value as the xSDS(molar fraction of anionic surfactant) value increased.At xSDS≤0.5,the conductivity values that correspond with W0,max increased as xSDS increased;and at xSDS≥0.5,the conductivity values decreased.In the AOT/ Tween60/cyclohexane/water system,the observed phenomenon was similar to the SDS/Tween60/hexanol/cyclohexane/ water system.However,conductivity values that correspond with W0,max increased with increasing xAOT and there was no maximum value.The difference is mainly due to cosurfactant effects,which was confirmed by the SDS/TritionX-100/ hexanol/cyclohexane/water system.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2010年第6期1552-1556,共5页
Acta Physico-Chimica Sinica
基金
内蒙古高等学校科学研究项目(NJZY07104)
内蒙古自然科学基金(20080404MS0210)资助~~
关键词
电导
复配体系
反胶团
增溶
非离子表面活性剂
Conductivity
Mixed system
Reverse micelles
Solubilization
Non-ionic surfactant