Multivalent metal ion induced vesicle aggregation in aqueous polyelectrolyte-surfactant system

被引：6
|
作者：
Yao Jing-Xia [1 ]
Zhao Ying [1 ]
Huang Jian-Bin [1 ]
机构：
[1] Peking Univ, Coll Chem & Mol Engn, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China
来源：
ACTA PHYSICO-CHIMICA SINICA | 2006年 / 22卷 / 08期
基金：
中国国家自然科学基金;
关键词：
vesicles; vesicle aggregation; multivalent metal ion; polyelectrolyte-surfactant system;
D O I：
10.1016/S1872-1508(06)60039-9
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：
The vesicle aggregation induced by multivalent metal ions in the mixed system of polyelectrolyte (hydrolyzed random copolymer of maleic anhydride-styrene, SMA)-surfactant (dodecyltriethylanunonium bromide, DEAB) was investigated through transmission electron microscopy (TEM) observation and turbidity measurement. It was found that a small quantity of Ca2+ (in the magnitude of 10(-4) mol . L-1) can induce vesicle aggregation. Adding EDTA can dissociate the vesicle aggregation. Further investigation suggested that the vesicle aggregation followed the salt-linkage mechanism.
引用
收藏
页码：913 / 916
页数：4
相关论文
共 19 条
12