日用化学工业2017，Vol.47Issue(3)：121-125,5.DOI:10.13218/j.cnki.csdc.2017.03.001
烷基聚氧乙烯醚磺基甜菜碱的构效关系研究
Relationship between structure and physicochemical properties of polyoxyethylene sulfobetaines surfactants
摘要
Abstract
In order to find the structure-performance relationship of nonionic-zwitterionic hybrid surfactants, N,N-dimethyl-N-dodecyl polyoxyethylene (n)sulfobetaines (C12 EOn SBe)with separate polyoxyethylene length (n=1-4)were taken as studying object. Data for critical micelle concentration (cmc)and number of micellar aggregates (Nm )were obtained by drop-volume method and time-resolved fluorescence method. Results showed that,as comparing with the conventional N,N - dimethyl - N - dodecyl sulfobetaine (C12SBe),cmc of C12EOnSBe (n=1-4)is lower. Following the increase of n,cmc of C12EOnSBe (n=1-4) declines;saturated adsorption (Γm)increases;the minimum molecular cross-sectional area (Amin)deceases;and the critical micellar aggregation number (Nm,c )decreases as well.关键词
混合型表面活性剂/烷基聚氧乙烯醚磺基甜菜碱/构效关系Key words
hybrid surfactant/N/N-dimethyl-N-dodecyl polyoxyethylene (n)sulfobetaines/the structure-performance relationship分类
化学工程引用本文复制引用
陈晖,侯丽雅,刘雪锋..烷基聚氧乙烯醚磺基甜菜碱的构效关系研究[J].日用化学工业,2017,47(3):121-125,5.基金项目
国家自然科学基金资助项目(21673103) （21673103）
江苏省高校青蓝工程资助项目 （）
