Vesicle aggregation in aqueous mixtures of negatively charged polyelectrolyte and conventional cationic surfactant

被引：15
|
作者：
Yao, Jingxia
Feng, Yuan
Zhao, Ying
Li, Zichen
Huang, Jianbin [1 ]
Fu, Honglan
机构：
[1] Peking Univ, Coll Chem & Mol Engn, State Key Lab Struct Chem Unstable & Stable Speci, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
[2] Peking Univ, Coll Life Sci, Beijing 100871, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2007年 / 314卷 / 02期
基金：
中国国家自然科学基金;
关键词：
vesicle; aggreation; dehydration; steric repulsion;
D O I：
10.1016/j.jcis.2007.06.005
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Vesicle aggregation induced by different environmental factors, including the addition of divalent metal ions, decrease of pH, and increase of temperature-was investigated through turbidity measurement, fluorescence measurement, and transmission electron microscope observation in aqueous solutions of hydrolyzed styrene-maleic anhydride copolymer (HSMA) mixed with dodecyltriethylammonium bromide (C12Et3). The vesicle aggregation can be explained by the dehydration of the vesicle surface through cations addition or temperature increase based on an analysis of the interaction between vesicles. Moreover, the steric repulsion was introduced to the system and the control of vesicle aggregation was achieved. (c) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码：523 / 530
页数：8
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