Conformation and Counterion Distribution of Polyelectrolyte in Solution as Viewed from Dielectric Approach

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外文摘要：Polyelectrolyte solutions are more variable than uncharged macromolecule due to electrical interaction between charged molecules and surrounding counterions.Therefore,the subject of polyelectrolyte solutions has attracted a wide range of interests in both basic and applied research,and has also been extensively explored.However,the understanding of the molecular dynamics and conformation of polyelectrolytes in solution remains to be deepened,and universal consensus on some key issues have not been reached.Many methods have contributed to solving the above problems in different ways,including dielectric relaxation spectroscopy(DRS).In this perspective,we briefly reviewed the his-tory of dielectric spectroscopic research on polyelectrolyte solution,with emphasis on summarizing our efforts.In particular,we expound the characteristics of DRS and its ability to obtain the internal information of the system of interest.Finally,we evaluate the advantages and limita-tions of the dielectric method and discussed future prospects of this field.

外文关键词：

PolyelectrolyteDielectric relaxation spectroscopyChain conformationThermosensitive microgelPNIPAM microgelSpherical polyelectrolyte brushes

作者：

Kong-Shuang Zhao

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作者单位：

College of Chemistry,Beijing Normal University,Beijing 100875,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of China

项目编号：

216730022147301221173025

出版年：

2024

DOI：

10.1007/s10118-024-3138-0

高分子科学(英文版)

中国化学会　中国科学院化学研究所

高分子科学(英文版)

CSTPCD

影响因子：0.721

ISSN：0256-7679

年,卷(期)：2024.42(9)