Novel Gel Phase Formed by Mixing a Cationic Surfactive Ionic Liquid C16mimCl and an Anionic Surfactant SDS in Aqueous Solution
Novel Gel Phase Formed by Mixing a Cationic Surfactive Ionic Liquid C16mimCl and an Anionic Surfactant SDS in Aqueous Solution
复制标题
阳离子表面活性离子液体 C16mimCl 和阴离子表面活性剂 SDS 在水溶液中混合形成的新型凝胶相
DOI：
10.1021/jp809048u
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发表时间：
2009-01-29
影响因子：
3.3
通讯作者：
Ma, Fumin
中科院分区：
文献类型：
--
作者：
Zhao, Yurong;Chen, Xiao;Ma, Fumin
研究了阳离子表面活性剂离子液体（IL）、氯化十六烷基3甲基咪唑（[C（16）mim]Cl）、阴离子十二烷基硫酸钠（SDS）和水组成的阴阳离子体系的相行为。一种新的凝胶相具有相当高的水含量，可以制造显示出类似的流变学性质的囊泡通常形成在传统的阴阳离子系统。在SDS富集区也可以形成层状结构。烷基链的疏水相互作用和带相反电荷的头基之间的相互作用对凝胶的形成起重要作用。这种在相对低的表面活性剂浓度下直接从阴阳离子体系形成凝胶的简便方法是新颖的，这应该与咪唑离子液体的特定分子结构有关。所得结果有助于更好地理解阴阳离子体系。
The phase behavior of a catanionic system composed by a cationic surfactive ionic liquid (IL), 1-hexadecyl-3-methylimidazolium chloride ([C(16)mim]Cl), an anionic sodium dodecyl sulfate (SDS), and water has been investigated. A novel gel phase with quite high water content can be fabricated showing similar theological properties to vesicles usually formed in traditional catanionic systems. The lamellar structure could also be constructed in SDS-rich region. Both the hydrophobic interaction of alkyl chains and interactions between oppositely charged head groups play important roles for the gel formation. Such a facile method to form gels directly from the catanionic system at relative low surfactant concentrations is novel, which should be related to the specific molecular structure of imidazolium ILs. The obtained results are expected to be helpful for better understanding of catanionic systems.