| AOT/水/甲苯微乳体系的第二维里系数和液滴间的相互作用 |
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| 引用本文： | 彭旭红,郑佩珠,马元明,殷天翔,安学勤,沈伟国.AOT/水/甲苯微乳体系的第二维里系数和液滴间的相互作用[J].物理化学学报,2011,27(5):1026-1030. |
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| 作者姓名： | 彭旭红 郑佩珠 马元明 殷天翔 安学勤 沈伟国 |
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| 作者单位： | 1. Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China;
2. Department of Chemistry, East China University of Science and Technology, Shanghai 200237, P. R. China |
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| 摘 要： | 在一系列温度下通过对水与丁二酸双(2-乙基己基)酯磺酸钠(AOT)摩尔比为12、不同浓度的AOT/水/甲苯微乳液进行静态光散射测量, 获得液滴的相对分子质量、AOT的聚集数、液滴半径和不同温度下的第二维里系数. 利用第二维里系数与温度的关系获得液滴的相互作用焓和熵, 分别为-4.03×104 J·mol-1和-139.8 J·mol-1·K-1, 说明AOT/水/甲苯微乳液滴间表面活性剂疏水链相互交叉渗透的能量变化为负值, 交叉渗透为焓驱动.
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| 关 键 词： | 微乳液 AOT 第二维里系数 液滴间相互作用 静态光散射 |
| 收稿时间： | 2010-12-27 |
| 修稿时间： | 2011-03-25 |
The Second Virial Coefficient and Droplet Interaction of AOT/Water/Toluene Microemulsion |
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| PENG Xu-Hong,ZHENG Pei-Zhu,MA Yuan-Ming,YIN Tian-Xiang,AN Xue-Qin,SHEN Wei-Guo.The Second Virial Coefficient and Droplet Interaction of AOT/Water/Toluene Microemulsion[J].Acta Physico-Chimica Sinica,2011,27(5):1026-1030. |
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| Authors: | PENG Xu-Hong ZHENG Pei-Zhu MA Yuan-Ming YIN Tian-Xiang AN Xue-Qin SHEN Wei-Guo |
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| Institution: | 1. Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China;
2. Department of Chemistry, East China University of Science and Technology, Shanghai 200237, P. R. China |
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| Abstract: | Static light scattering measurements on a microemulsion of sodium bis(2-ethylhexyl) sulfosuccinate (AOT)/water/toluene with a water to AOT molar ratio of 12 at a series of temperatures and droplet concentrations were carried out to obtain their molecular weights, aggregation number, radius, and the second Virial coefficient of the droplets at various temperatures and concentrations. The dependence of the second Virial coefficient on the temperature was used to obtain the enthalpy and entropy of the interact... |
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| Keywords: | AOT |
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