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聚电解质和表面活性剂混合体系中多价金属离子诱导的囊泡聚集
引用本文:么敬霞,赵颖,黄建滨.聚电解质和表面活性剂混合体系中多价金属离子诱导的囊泡聚集[J].物理化学学报,2006,22(8):913-916.
作者姓名:么敬霞  赵颖  黄建滨
作者单位:State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
基金项目:国家自然科学基金;高等学校博士学科点专项科研项目
摘    要:利用浊度和电镜观察等方法研究了水解的苯乙烯-马来酸酐共聚物(SMA)和十二烷基三乙基溴化铵(DEAB)混合体系中多价金属离子诱导的囊泡聚集现象. 提出了关于多价金属离子诱导囊泡聚集的机理.

关 键 词:囊泡  囊泡聚集  多价金属离子  聚电解质鄄表面活性剂混合体系  
收稿时间:2006-04-28
修稿时间:2006-05-19

Multivalent Metal Ion Induced Vesicle Aggregation in Aqueous Polyelectrolyte-surfactant System
YAO,Jing-Xia,ZHAO,Ying,HUANG,Jian-Bin.Multivalent Metal Ion Induced Vesicle Aggregation in Aqueous Polyelectrolyte-surfactant System[J].Acta Physico-Chimica Sinica,2006,22(8):913-916.
Authors:YAO  Jing-Xia  ZHAO  Ying  HUANG  Jian-Bin
Institution:State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
Abstract:The vesicle aggregation induced by multivalent metal ions in the mixed system of polyelectrolyte(hydrolyzed random copolymer of maleic anhydride-styrene, SMA)-surfactant(dodecyltriethylammonium 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.
Keywords:Vesicles  Vesicle aggregation  Multivalent metal ion  Polyelectrolyte-surfactant system
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