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论文类型：期刊论文
发表时间：2015-01-01
发表刊物：JOURNAL OF SURFACTANTS AND DETERGENTS
收录刊物：SCIE、EI、Scopus
卷号：18
期号：1
页面范围：171-178
ISSN号：1097-3958
关键字：Quaternary ammonium compounds with carbamate; Catanionic aggregates; Spontaneous vesicle formation; Dynamic light scattering; Negative-staining TEM
摘要：Spontaneous vesicles formation in the aqueous mixtures of 2,3-bis (dodecylcarbamoyloxy)-N, N-dimethyl-N-(2-hydroxyalkyl) propyl ammonium chloride (C(12)PAC) and sodium dodecylbenzene sulfonate at different mixing molar ratios have been investigated. The characterizations are demonstrated by electrical conductivity measurements, dynamic light scattering and zeta (zeta) potential measurements. The zeta-potential results indicate the C(12)PAC/SDBS systems are stable. The shapes of the catanionic vesicles are observed by negative-staining transmission electronic microscopy. Meanwhile, from the viewpoint of molecular geometry structure, the electrostatic interaction between anionic and cationic molecules is regarded as the main driving force for spontaneous formation of vesicles.