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

作者：Jiang Rong; Huang Yi Xiong; Zhao Jian Xi^*; Huang Chang Cang

来源：Fluid Phase Equilibria, 2009, 277(2): 114-120.

DOI：10.1016/j.fluid.2008.11.018

• Aqueous two-phase system
• Gemini surfactant
• Cationic/anionic surfactants mixture

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.

• 出版日期2009-3-25
• 单位福州大学