The mechanism for the transition from vesicles to punctured lamellae and faceted vesicles in cationic and anionic fluorinated surfactant mixture

文献类型： 外文期刊

第一作者： Shen, Yuwen

作者： Shen, Yuwen;Lin, Haitao;Jiang, Lihua;Liu, Zhaohui;Gao, Xinhao;Ou-Yang, Zhong-can;Hao, Jingcheng

作者机构：

关键词： Cat-anionic fluorinated surfactant;Faceted vesicle;Punctured lamellae;Surface charge;Self-assembly

期刊名称：COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS （ 影响因子：4.539； 五年影响因子：4.039 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： A mixture of cationic and anionic fluorinated surfactants can form faceted vesicles and punctured lamellar phase when there is excess surface charge, in which both cationic and anionic fluorinated surfactants are stiff in the membrane as phospholipids in the frozen "crystalline" or "gel" phase. Here, a model was established to demonstrate the mechanism of the formation and transition of the aggregates with different morphologies. With excess cationic surface charge, the gel-like faceted vesicles and punctured lamellae can transform into smooth-shaped vesicles at high temperature. The freeze-fracture transmission electron microscope (FF-TEM) and X-ray diffraction (XRD) were used to identify the segregation and phase sequence of semi-fluorinated cationic and anionic surfactant membranes with different excess surface charge. (C) 2016 Elsevier B.V. All rights reserved.

分类号： O648

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