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Citation: ZHENG Ou, ZHAO Jian-Xi, FU Xian-Ming. Reverse Micelle Formation of C₁₂-s-C₁₂•2Br in n-heptane and Their Solubilization for Water[J]. Acta Physico-Chimica Sinica, ;2006, 22(03): 322-325. doi: 10.1016/S1872-1508(06)60007-7 shu

Reverse Micelle Formation of C₁₂-s-C₁₂•2Br in n-heptane and Their Solubilization for Water

1.
Department of Applied Chemistry, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, P. R. China

Received Date: 6 September 2005
Available Online: 10 March 2006

The critical reverse micelle concentrations of quaternary ammonium Gemini surfactants C12-s-C12•2Br (s=2, 3, 4, 5, 6, 8, 12) in n-heptane (cmcw) have been determined by water solubilization method. These values are smaller than the critical micelle concentration (cmcaq) of them in aqueous solution, where C12-s-C12•2Br forms normal micelles. The cmcw as a function of s es through a maximum at s=4, which is similar to the variation regularity of cmcaq with s. The saturation amounts of water solubilized in the reverse micelles measured by both water solubilization method and conductivity method show a maximum at about s=5. This is attributed to the change of folded conformation of the spacer chain.
- Quaternary ammonium Gemini surfactants; Heptane/hexanol solution; Reverse micelle; Solubilizing water
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Reverse Micelle Formation of C12-s-C12•2Br in n-heptane and Their Solubilization for Water

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通讯作者: 陈斌, bchen63@163.com

Reverse Micelle Formation of C₁₂-s-C₁₂•2Br in n-heptane and Their Solubilization for Water