Hydrophobically modified polyelectrolytes in dilute salt-free solutions

被引：52

作者：

Dobrynin, Andrey V. ^{[1
]}

Rubinstein, Michael ^{[1
]}

机构：

[1] Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599-3290, United States

来源：

Macromolecules | 2000年 / 33卷 / 21期

关键词：

Block copolymers - Conformations - Electrostatics - Free energy - Hydrophobicity - Interfacial energy - Micelles - Monomers - Phase diagrams - Solutions;

D O I：

10.1021/ma000761m

中图分类号：

学科分类号：

摘要：

The universal diagram of states of hydrophobically modified polyelectrolytes in dilute salt-free solutions is calculated in the framework of the scaling approach. The equilibrium conformations of these polymers were classified using two parameters-geometric and energetic ratios of hydrophobic and polyelectrolyte blocks in unassociated states (the ratio of block sizes and the ratio of block energies). The hydrophobically modified polyelectrolytes self-organize either into necklaces of hairy, crew-cut, or braided micelles or into wormlike cylindrical micelles depending on the values of these two parameters. The universal diagram of states is modified by the counterion condensation.

引用

页码：8097 / 8105