Flexible polyelectrolyte conformation in the presence of oppositely charged surfactants

被引：8

作者：

Kuhn, P. S. ^{[1
]}

Diehl, A. ^{[1
]}

机构：

[1] Univ Fed Pelotas, Inst Fis & Matemat, Dept Fis, BR-96010900 Pelotas, RS, Brazil

来源：

PHYSICAL REVIEW E | 2007年 / 76卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.76.041807

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Conformational behavior of flexible polyelectrolytes in the presence of monovalent cationic surfactants is examined. A simple model is presented for the formation of polyelectrolyte-surfactant complexes in salt-free solutions in the framework of the Debye-Huckel-Bjerrum-Manning and Flory theories, including explicitly the hydrophobic interactions between the associated surfactant molecules on the polyelectrolyte. The distribution of complexes is calculated as a function of the surfactant concentration and a discrete conformational transition between an elongated coil and a compact globule was found, in agreement with experimental observations.

引用

页数：6

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