Evaluation of the counterion condensation theory from the metal ion distributions obtained by ultrafiltration of a system poly(sodium 4-styrenesulfonate)/Cd2+/Na+

被引：42

作者：

Rivas, BL ^{[1
]}

Moreno-Villoslada, I ^{[1
]}

机构：

[1] Univ Concepcion, Fac Chem, Dept Polymers, Concepcion, Chile

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1998年 / 102卷 / 52期

关键词：

D O I：

10.1021/jp982850v

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 metal ion distributions of a solution of poly(sodium 4-styrenesulfonate) in the presence of Cd2+ and Na+ ions are obtained by ultrafiltration. The results are used to evaluate the Manning's two-variable counterion condensation theory concerned with long-range interactions. The original theory results are insufficient to explain the metal ion distributions obtained, and shea-range interactions have to be included. We also propose the inclusion of the influence of the polymer conformations in the theory.

引用

页码：11024 / 11028

页数：5

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