| 表面活性剂在固——液界面上吸附过程的疏水效应研究 |
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| 引用本文： | 王金本.表面活性剂在固——液界面上吸附过程的疏水效应研究[J].天中学刊,2000,15(2):26-31. |
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| 作者姓名： | 王金本 |
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| 作者单位： | 中国科学院化学研究所!北京100080 |
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| 摘 要： | 用表面张力法测定了烷基三甲溴化胺在活性炭表面的吸附数据。讨论了疏水效应在阳离子表面活性剂从水溶液中吸附到活性炭表面这一过程中所起的作用。结果表明：室温下表面活性剂的烃链尾巴自水中移出时总伴随着大的熵增和接近于零的焓变，吉布斯自由能变化也为一负值，由处理结果得到了分别来自水分子建构和开辟空穴贡献的热力学函数变化。
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| 关 键 词： | 疏水效应 吸附 阳离子表面活性剂 固－液界面 |
The Hydrophobic Effect in the Adsorption of Surfactants on to Activatated Caron |
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| WANG Jin,ben.The Hydrophobic Effect in the Adsorption of Surfactants on to Activatated Caron[J].Journal of Tianzhong,2000,15(2):26-31. |
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| Authors: | WANG Jin ben |
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| Abstract: | The properties of the adsorption of cationic surfactants on to activatated carbon were determined by using the method of surface tension. The hydrophobic effect in thd process of transfer of cationic surfactants from aqueous solution to the solid surface has been studied. It is shown that the removal of hydrocarbon tail of a surfactant from water at room temperature is always associated with a large increase in entropy, an enthalph of around zero and hence a large and negative Gibbs free energy. From the results we have obtained the contributions from the structuring and the cabity to the thermodynamic parameters. |
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| Keywords: | hydrophobic effect adsorption cationic surfactant |
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