文献类型：期刊文献

中文题名：表面活性素与三种长链烷基苯磺酸盐之间的相互作用

英文题名：Interaction between Surfactin and Three kinds of Alkylbenzene Sulfonates with Long Hydrophobic Chains

作者：王浩[1];刚洪泽[1];杨世忠[1];叶汝强[1];牟伯中[1]

机构：[1]华东理工大学应用化学研究所,上海200237

年份：2014

卷号：77

期号：9

起止页码：872

中文期刊名：化学通报

外文期刊名：Chemistry

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家自然科学基金(21203063);中央高校基本科研业务费项目(WK1213003;WJ1214066)资助

语种：中文

中文关键词：协同作用;混合胶束;相互作用参数;微极性;各向异性

外文关键词：Synergism,Mixed micelle,Interaction parameter,Micropolarity,Anisotropy

摘要：利用表面张力和荧光方法研究了表面活性素(surfactin)与3种长链烷基苯磺酸盐C16ABS、C17ABS和C18ABS之间的相互作用。计算了混合体系吸附单层和混合胶束中分子间的相互作用参数(βσ和βm)以及热力学性质。负的相互作用参数表明,尽管表面活性剂均为负离子型,存在静电排斥,但是混合后两者之间的排斥作用减弱,从而产生增效作用。这可能是由于烷基苯磺酸盐与surfactin在混合吸附单层和胶束中形成了一种既能减弱头基间静电排斥又能增强疏水链之间相互作用的空间结构所致。荧光结果显示,混合表面活性剂能形成更紧密、体积更大的聚集体,并且在高烷基苯磺酸盐含量时可能存在大型的棒、层状胶束或囊泡。
Interaction between surfactin and three kinds of alkylbenzene sulfonates,C16 ABS,C17ABS,and C18 ABS,at different molar ratios were studied by surface tension and fluorescence methods. Various parameters including interaction parameters( βσand βm) and thermodynamic properties had been determined. The interaction showing negative βσand βmvalues in the mixed interfacial monolayer and micelle is attractive despite that both components are permanently negatively charged. Such an unexpected attractive interaction might be attributed to the arrangement of alkylbenzene sulfonates and surfactin molecules into a configuration that reduces the electrostatic repulsion and promotes the hydrophobic interaction between the molecules. The results of fluorescence measurements indicated that more packed and larger aggregates were formed from mixed surfactants and the mixed system may be able to form rod-shaped and lamellar micelle or vesicle at high molar fraction of alkylbenzene sulfonates.