Temperature-induced vesicle aggregation in catanionic surfactant systems: the effects of the headgroup and counterion.
Temperature-induced vesicle aggregation in catanionic surfactant systems: the effects of the headgroup and counterion.
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DOI：
10.1021/la063221c
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发表时间：
2007-03
期刊：
影响因子：
--
通讯作者：
Haiqing Yin;Yiyang Lin;Jianbin Huang;Jian-ping Ye
中科院分区：
文献类型：
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作者：
Haiqing Yin;Yiyang Lin;Jianbin Huang;Jian-ping Ye
系统地研究了某些阴阳离子表面活性剂体系中温度诱导囊泡聚集（TIVA）的特殊性质。在对囊泡间相互作用进行一般分析的基础上，认为这种现象的主要驱动力是表面活性剂头基的暴露疏水部分之间的囊泡间疏水相互作用。另外，还发现向阴阳离子囊泡系统中加入带相反电荷的疏水盐可促进TIVA的发生。事实上，TIVA可以在普通的阴阳离子囊泡系统中通过添加带相反电荷的疏水性抗衡离子来诱导。
The peculiar nature of temperature-induced vesicle aggregation (TIVA) in some catanionic surfactant systems is systematically investigated. On the basis of a general analysis of the intervesicular interactions, the main driving force for this phenomenon is considered to be the intervesicular hydrophobic interaction among the exposed hydrophobic part of the surfactant headgroups. The addition of an oppositely charged hydrophobic salt to the catanionic vesicle systems is also found to promote the occurrence of TIVA. In fact, TIVA can be induced in ordinary catanionic vesicle systems by the addition of an oppositely charged hydrophobic counterion.