端羟基季铵盐Gemini表面活性剂的胶团化行为研究

Study on the Micellization of Quaternary Ammonium Gemini with Hydroxyl in Head Groups

合成了一种新的离子头基上含羟乙基的季铵盐阳离子Gemini表面活性剂反丁烯撑基双(十六烷基二羟乙基)溴化铵[G(OH)],考察了G(OH)水溶液的胶团行为。结果表明:G(OH)的临界胶团浓度(CMC)随着温度的升高逐渐增大,25℃时为0.90mmol/L,胶团化过程为熵驱动过程,羟基的引入增加了其水溶液的稠度。

A novel quaternary ammonium cationic Gemini surfactants with hydroxyl in head groups bis[ （N,N-diethanol）hexadecylammonium]dibromide-trans-butene[G（OH）] was synthesized. The effect of Gemini with hydroxyl in head groups on the micellization of G （OH） in aqueous solution has been investigated. The results showed that the values of CMC for G（OH） is gradually increases with increasing temperature, and the value is 0.90mmol/L at 25℃. The micellization of this Gemini is an entropy-driven process. Hydroxyl in head groups can increase the viscosity of aqueous solution.