摘要
应用紫外分光光度法和电导法测定了微量酯类、醇类和高聚物添加剂对阳离子、阴离子、非离子和混合表面活性剂体系临界胶束浓度（ＣＭＣ）的影响，并讨论了ＣＭＣ改变的原因．对表面活性的复配体系，计算了相互作用参数βｍ和胶束相中的组分摩尔分数ｘｍ１．结果表明：在复配体系的胶束相中，ＣＭＣ小的组分所占的比例较大；当相互作用参数βｍ＜０时。
The addition of small amount of esters,alcohols and polymer to cationic,anionic,nonionic and mixed surfactants changes the critical micellar concentrations (cmc) of surfactants.These changes have been studied with conductivity and spectrophotometry methods,and the reasons have been suggested.Interaction parameter β m and mole fraction x m 1 in micellar phase have been calculated for mixed surfactant systems.The results show that fraction of surfactant with lower CMC is relatively larger in micellar phase,and CMC is smaller than calculation from ideal system when β m 1<0.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
1997年第3期329-334,共6页
Journal of Sichuan University(Natural Science Edition)
基金
国家自然科学基金
关键词
表面活性剂
临界胶束浓度
添加物
surfactant,critical micellar concentration (cmc),additive
