| 乙醇/水混合溶剂中Gemini表面活性剂的表面性质 |
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| 引用本文： | 胡尚林,卢婷,兰玉茹,黄建滨.乙醇/水混合溶剂中Gemini表面活性剂的表面性质[J].物理化学学报,2008,24(12):2309-2313. |
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| 作者姓名： | 胡尚林 卢婷 兰玉茹 黄建滨 |
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| 作者单位： | College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China; College of Chemistry and Material, Longyan University, Longyan 364000, Fujian Province, P. R. China |
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| 基金项目： | 国家自然科学基金
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| 摘 要： | 通过对Gemini表面活性剂12-s-12 (Et)(s=4, 6, 8, 10, 12)体系在乙醇/水混合溶剂中的表面张力曲线的测定, 对该体系的表面性质进行了研究. 发现随乙醇/水比例变化, Gemini各种表面化学性质, 如临界胶束浓度(cmc)、表面张力(γcmc)、饱和吸附量(Γmax)和最小分子占有面积(Amin)等的变化规律. 拓展了Gemini表面活性剂在混合溶剂中表面吸附的研究.
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| 关 键 词： | Gemini表面活性剂 表面性质 乙醇/水混合溶剂 |
| 收稿时间： | 2008-07-07 |
| 修稿时间： | 2008-09-19 |
Surface Properties of Gemini Surfactants in Ethanol-Water Mixtures |
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| HU Shang-Lin,LU Ting,LAN Yu-Ru,HUANG Jian-Bin.Surface Properties of Gemini Surfactants in Ethanol-Water Mixtures[J].Acta Physico-Chimica Sinica,2008,24(12):2309-2313. |
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| Authors: | HU Shang-Lin LU Ting LAN Yu-Ru HUANG Jian-Bin |
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| Institution: | College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China; College of Chemistry and Material, Longyan University, Longyan 364000, Fujian Province, P. R. China |
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| Abstract: | Surface properties of Gemini surfactants 12-s-12 (Et)(s=4, 6, 8, 10, 12) in ethanol/water solvents were studied by measurement of surface tension curves. Values of the critical micelle concentration (cmc), surface tension at the cmc (γcmc), saturation adsorption (Γmax) and minimumarea per surfactant molecule (Amin) for Gemini surfactants in various ethanol/water mixture ratios were determined. The effect of ethanol addition on the cmc and γcmc for this series of surfactant systems is discussed. |
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| Keywords: | Gemini surfactants Surface properties Ethanol-water mixed solvent |
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