Abstract:
季铵盐Gemini表面活性剂C12-s-C12·2Br(s=2,3,4,6)与丙、丁、戊、己醇混合水溶液的lnCMC随T增大而逐渐增大.计算所得热力学数据表明,C12-s-C12·2Br与醇混合胶团化过程服从熵驱动机理,也表现出焓/熵补偿现象.随着温度上升,熵驱动力增大.在指定温度时,醇分子烷烃链上碳原子数n增大使△G0m值减小,胶团结构更加稳定;而增加s使△G0m值增大,胶团稳定性下降.
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Year: 2002
Page: 132-136
Language: Chinese
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