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Phase behavior of ionic liquids (Ⅰ)Micellization

XIA Hansong;YU Jiang;HU Xuesheng;LIU Qingfen;LIU Huizhou   

  • Online:2006-09-25 Published:2006-09-25

离子液体相行为(Ⅰ)胶团化特性

夏寒松;余江;胡雪生;刘庆芬;刘会洲   

  1. 中国科学院过程工程研究所分离科学与工程实验室, 生化工程国家重点实验室,北京 100080;中国科学院研究生院,北京 100039

Abstract: The aggregation behavior of ionic liquids into micelle was studied.It was found that the micellization of ionic liquids was governed by its side-chain length, head structure and anion species, which could be promoted by increasing hydrophobicity, such as a long side-chain length, a hydrophobic anion or C2-methylated head.The side-chain length played the most active role in comparison with head group and anion.The micellization of ionic liquids would be weakened with increasing temperature.

摘要: 研究了离子液体在水相中的自聚规律,从侧链、头部及阴离子类型等方面比较了影响胶团聚集的主要因素.实验发现,增加侧链长度有利于胶团形成,降低阴离子水合性以及采用甲基化头部也利于形成胶团,碳链长度变化的作用最明显,升高温度不利于离子液体形成胶团.