Aqueous two-phase system of an anionic gemini surfactant and a cationic conventional surfactant mixture

被引：21
|
作者：
Jiang, Rong [1 ]
Huang, Yi-Xiong [1 ]
Zhao, Jian-Xi [1 ]
Huang, Chang-Cang [1 ]
机构：
[1] Fuzhou Univ, Dept Appl Chem, Coll Chem & Chem Engn, Fuzhou 350002, Peoples R China
来源：
FLUID PHASE EQUILIBRIA | 2009年 / 277卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Aqueous two-phase system; Gemini surfactant; Cationic/anionic surfactants mixture; PHASE-BEHAVIOR; CLOUD-POINT; MICELLAR SYSTEMS; CETYLTRIMETHYLAMMONIUM BROMIDE; TETRABUTYLAMMONIUM BROMIDE; SEPARATION; EXTRACTION; VESICLES; MICROSTRUCTURE; 12-3-12,2BR(-);
D O I：
10.1016/j.fluid.2008.11.018
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The aqueous two-phase system formed by the mixture of dodecyltrimethylammonium bromide (DTAB) with a gemini surfactant O,O'-bis(sodium 2-lauricate)-p-benzenediol (C(11)pPHCNa) has been studied. Two two-phase regions were observed,one was a wide region in the cationic surfactant-rich side and the other in the vicinity of R = 1:1, where R is the mixing mole ratio of DTAB to C(11)pPHCNa in global Solution. Multi-lamellar vesicles are formed in the concentrated upper phase of cationic surfactant-rich systems and spherical aggregates in the concentrated bottom phase at R = 1:1. The microstructure of the solution and the phase behavior of the aqueous two-phase system strongly depended on the total concentration and the composition of the system. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：114 / 120
页数：7
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