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乙醇/水混合溶剂中Gemini表面活性剂的表面性质
  • 期刊名称：物理化学学报 2008，24(12), 2309-2313
  • 时间：0
  • 分类：O645[理学—物理化学;理学—化学] O647[理学—物理化学;理学—化学]
  • 作者机构：[1]北京大学化学与分子工程学院,北京100871, [2]龙岩学院化学与材料学院,福建龙岩364000
  • 相关基金：国家自然科学基金（20573006）资助项目
  • 相关项目：溶液中两亲分子有序组合体的构筑规律及其在生命科学相关领域中的应用
关键词： Gemini表面活性剂, 表面性质, 乙醇冰混合溶剂, Gemini surfactants, Surface properties, Ethanol-water mixed solvent
中文摘要：

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（Гmax）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．

英文摘要：

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 （Гmax） and minimum area per surfactant molecule （Amin） for Gemini surfactants in various ethanol/water mixture ratios were determined. The effect of ethanol addition on the cmc and γcmcfor this series of surfactant systems is discussed.

同期刊论文项目
若干两亲分子及其混合体系中囊泡形成与转化的规律性研究
期刊论文 27 会议论文 9
溶液中两亲分子有序组合体的构筑规律及其在生命科学相关领域中的应用
期刊论文 185 会议论文 127
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