物理化学学报2011，Vol.27Issue(5)：1135-1142,8.
大离子诱导聚电解质/表面活性剂复合物的解离
Disassembly of Polyelectrolyte/Surfractants Complex Induced by Macroions
摘要
Abstract
The effects of charge number, diameter, surface charge density as well as concentration of macroions on the structure of a polyelectrolyte/surfactants complex were investigated using coarsegrained molecular dynamics simulation.We found that the macroions that had the same charge as the polyelectrolyte had no obvious effect on the structure of the polyelectrolyte/surfactants complex.However, the macroions with opposite charge to the polyelectrolyte can induce the release of surfactant from the polyelectrolyte and even lead to the complete disassembly of the polyelectrolyte/surfactants complex and the formation of a macroion/polyelectrolyte complex.The induction effect increases with an increase in charge number.For microions with the same charge number, smaller microions were found to cause desorption of the surfactant more easily.However the opposite effect was found for the diameter at a fixed charge density.The concentration of macroions also affects the structure of the complex greatly and the surfactants that are released from the polyelectrolyte increase with the macroion concentration and finally a macroion/polyelectrolyte complex with reversed charges is formed.关键词
聚电解质/表面活性剂/复合物/解离/分子动力学模拟Key words
Polyelectrolyte/ Surfactant/ Complex/ Disassembly/ Molecular dynamics simulation分类
化学化工引用本文复制引用
刘振海,尚亚卓,黄永民,彭昌军,刘洪来..大离子诱导聚电解质/表面活性剂复合物的解离[J].物理化学学报,2011,27(5):1135-1142,8.基金项目
国家自然科学基金(20706013,20736002),长江学者创新团队(IRT0721),教育部留学回国人员科研启动基金和中央高校基本科研业务费专项资金资助 （20706013,20736002）
