文献类型：期刊文献

中文题名：离子液体型表面活性剂C12mimBr与普通表面活性剂混合性质的研究

英文题名：Mixing Behavior of Ionic Liquid Surfactant C12mimBr with Common Surfactants

作者：王腾芳[1];尚亚卓[1];彭昌军[1];刘洪来[1];

机构：[1]华东理工大学化学系化学工程国家重点实验室,上海200237;

年份：2009

卷号：67

期号：11

起止页码：1159

中文期刊名：化学学报

外文期刊名：Acta Chimica Sinica

收录：CSTPCD;;Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000267606400001)】；北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金（Nos.20776040,20706013,20736002）、教育部长江学者与创新团队计划（No.IRT0721）;高等学校学科创新引智计划（No.B08021）资助项目.

语种：中文

中文关键词：离子液体型表面活性剂;普通表面活性剂;混合性质;临界胶束浓度;胶团组成

外文关键词：ionic liquid surfactant; common surfactant; mixing behavior; critical micelle concentration; micelle composition

摘要：研究了离子液体型表面活性剂C12mimBr与阳离子表面活性剂Gemini12-3-12,DTAB及阴离子表面活性剂SDS复配体系的性质,并分别采用Rubingh-Margules模型和Rubingh-正规溶液模型计算了临界胶束浓度和混合胶团组成.研究发现,两表面活性剂分子结构的匹配性及带电头基之间的相互作用是影响混合溶液性质的主要因素.对于分子结构差别较大的C12mimBr与Gemini12-3-12的混合,其行为远远偏离理想混合性质;对疏水链长相同仅亲水头基不同的C12mimBr与DTAB则接近于理想混合;而对C12mimBr＋SDS的复配体系,正、负电荷间强烈的相互吸引使得混合体系大大偏离理想行为.计算发现,两种理论模型得到的混合胶团组成基本一致,但Rubingh-Margules模型预测的临界胶束浓度比Rubingh-正规溶液模型要好.
Properties of mixed surfactants containing ionic liquid surfactant are investigated in this paper. The other surfactants mixed with C12mimBr are several common surfactants, including Gemini 12-3-12, DTAB and SDS. Both of Rubingh-Margules model and Rubingh-regular solution model are used to calculate the critical micelle concentration and the composition of mixed micelle. It is observed that molecular structure and interaction between the charged head groups have great effects on the properties of mixed surfactants. The mixed behavior of C 12mimBr and Gemini 12-3-12 with great difference in the molecular structure is non-ideal, while it is almost ideal for mixture of C12mimBr and DTAB with the same hydrophobic chain length and different hydrophilic head group only. Due to the strong attractive interaction between the opposite charged head groups, of course the mixed behavior of Cl2mimBr and SDS is absolutely non-ideal. Moreover, results of the micelle composition the two models are almost the same; however, the prediction result of the critical micelle concentration is obviously better Rubingh-Margules model than Rubingh-regular solution model.