C12-s-C12 2Br在正庚烷中反胶团形成及增溶水特性

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在助表面活性剂正己醇存在下,季铵盐Gemini表面活性剂C12-s-C12·2Br(s=2、3、4、5、6、8、12)在正庚烷中形成了反胶团.以水增溶法测定了临界反胶团浓度cmcw,这些cmcw均分别小于它们在水中生成正胶团的临界浓度cmcaq.cmcw随s的变化规律与cmcaq随s的变化规律类似,在s=4时出现极大值.由水增溶法和电导法获得的反胶团饱和增溶水量(mw或mc)约在s=5时出现最大值.这些现象被归结为联接链构型的变化. The quaternary ammonium Gemini surfactant C12-s-C12.2Br (s = 2, 3, 4, 5, 6, 8, 12) formed an inverse gel in n-heptane in the presence of the co-surfactant n-hexanol The water solubilization method was used to determine the critical micelle concentration, cmcw, ​​which were less than their critical concentrations in water, respectively, and the variation of cmcaq with s was similar to that of s = 4. The maximum amount of water solubilized (mw or mc) in reverse micelles obtained by water solubilization and conductivity methods appears at a maximum at s = 5. These phenomena are attributed to the Variety.
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