CONFORMATION TRANSITION AND COUNTERION DISTRIBUTION OF SINGLE POLYELECTROLYTE CHAINS
The mysteries of polyelectrolytes have been attracting research attentions for decades, and the complexity lying inside originates from multiple reasons, such as the long-ranged electrostatic interactions, existence of multiple charges, as well as the multiple molecular interactions. The dominant effect of electrostatic interaction controls the repulsion between the charges along the chain backbone, which in turn determines the chain conformation. Electrostatic interaction also attracts the counterions to the chain, which exerts an opposite effect to the entropy maximation. Therefore, the studies on chain conformation and counterion distribution have been two major research topics in polyelecrolyte physics. Here, we adopt single molecule fluorescence techniques to address the inter-play of these two factors with a model system of weak (or annealed) polyelectrolytes.
Shengqin Wang Jiang Zhao
Joint Laboratory of Polymer Science and Materials,State Key Laboratory of Polymer Physics and Chemistry,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China
国际会议
International Symposium on Polymer Physics(2008年国际高分子物理学术会议PP2008)
厦门
英文
34-35
2008-06-08（万方平台首次上网日期，不代表论文的发表时间）