Effect of cosurfactant on ionic liquid solubilization capacity in cyclohexane/TX-100/1-butyl-3-methylimidazolium tetrafluoroborate microemulsions

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• 作者：Siqing Cheng ; Feng Han ; Yourong Wang ; Jianfang Yan
• 关键词：Ionic liquid ; Microemulsions ; Solubilization capacity ; Cosurfactant
• 刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects
• 出版年：2008
• 出版时间：20 March 2008
• 年：2008
• 卷：317
• 期：1-3
• 页码：457-461
• 全文大小：301 K

文摘

The effects of n-butanol as a cosurfactant on the phase behavior of cyclohexane/TX-100/[Bmim][BF₄] system, especially on the [Bmim][BF₄] solubilization capacity in [Bmim][BF₄]/cyclohexane microemulsions, were investigated by direct visual observation, UV–vis spectrophotometry and dynamic light scatting (DLS) at 25.0 °C. The results show that n-butanol magnifies notably the [Bmim][BF₄]/cyclohexane microemulsion single-phase region and increases the [Bmim][BF₄] solubilization capacity in [Bmim][BF₄]/cyclohexane microemulsions. A possible mechanism was proposed to make out the effect of n-butanol as a cosurfactant on the microemulsions with ionic liquid domain.