Physicochemical studies on microemulsions 9. Conductance percolation of AOT-derived W/O microemulsion with aliphatic and aromatic hydrocarbon oils.
Physicochemical studies on microemulsions 9. Conductance percolation of AOT-derived W/O microemulsion with aliphatic and aromatic hydrocarbon oils.
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DOI：
10.1016/j.jcis.2005.03.080
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发表时间：
1993-11
影响因子：
9.9
通讯作者：
I. Chakraborty;S. P. Moulik
中科院分区：
文献类型：
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作者：
I. Chakraborty;S. P. Moulik
研究了在环状脂肪族和芳香族油（环己烷、环己酮、甲苯和二甲苯）中用 AOT 形成的 w/o 微乳液的体积和温度诱导的电导渗流，以及使用线性脂肪烃（正己烷、正庚烷、正辛烷、异辛烷和正癸烷）的水/AOT/油体系的体积渗流。添加剂的作用，即。胆酸钠 (NaC)、脱氧胆酸钠 (NaDC)、胆固醇、正丁醇和叔丁醇、甲苯和二甲苯（邻、间和对）对使用环己烷和环己酮油的温度诱导渗滤过程进行了研究。根据比例方程分析了渗滤结果，并评估了渗滤前和渗滤后阶段的离子传输现象的激活能量。根据渗滤数据，可以估计微分散水滴的直径、其数量和表面积。水在 AOT/油介质中的分散焓已通过等温滴定量热 (ITC) 测量确定。
Both volume- and temperature-induced percolation of conductance of w/o microemulsions formed with AOT in cyclic aliphatic and aromatic oils (cyclohexane, cyclohexanone, toluene, and xylenes), and volume percolation of water/AOT/oil systems using linear aliphatic hydrocarbons (n-hexane, n-heptane, n-octane, i-octane, and n-decane) have been studied. The effect of additives, viz. sodium cholate (NaC), sodium deoxycholate (NaDC), cholesterol, n-butanol, and t-butanol, toluene, and xylenes (o, m, and p) on the temperature-induced percolating processes using the oils cyclohexane and cyclohexanone has been examined. The percolation results have been analyzed in the light of scaling equation, and the energy of activation of the ion-transport phenomenon has been evaluated for both pre- and postpercolation stages. From the percolation data, the diameter of the microdispersed water droplets, their population, and surface area have been estimated. The enthalpy of dispersion of water in AOT/oil medium has been determined from isothermal titration calorimetric (ITC) measurements.