Conformations and Solution Properties of Star-Branched Polyelectrolytes

被引：64

作者：

Borisov, Oleg V. ^{[1
,2
]}

Zhulina, Ekaterina B. ^{[2
]}

Leermakers, Frans A. M. ^{[3
]}

Ballauff, Matthias ^{[4
,5
]}

Mueller, Axel H. E. ^{[6
]}

机构：

[1] UMR 5254 CNRS UPPA, Inst Pluridisciplinaire Rech Environm & Mat, F-064053 Pau, France

[2] Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia

[3] Wageningen Univ, Lab Phys Chem & Colloid Sci, NL-6703 Wageningen, Netherlands

[4] Humboldt Univ, Berlin, Germany

[5] Helmholtz Zentrum Berlin Mat & Energie GmBH Berli, Berlin, Germany

[6] Univ Bayreuth, Bayreuther Zentrum Kolloide & Grenzflachen, D-95440 Bayreuth, Germany

来源：

SELF ORGANIZED NANOSTRUCTURES OF AMPHIPHILIC BLOCK COPOLYMERS I | 2011年 / 241卷

基金：

俄罗斯基础研究基金会;

关键词：

Branched polyelectrolytes; Ionic fractals; Charge renormalization; Intra-molecular conformational transitions; BLOCK-COPOLYMER MICELLES; CONSISTENT-FIELD THEORY; POLY(METHACRYLIC ACID) BRUSHES; MOLECULAR-DYNAMICS SIMULATIONS; MODIFIED POLY(ETHYLENE OXIDE); ANGLE NEUTRON-SCATTERING; MONTE-CARLO-SIMULATION; AQUEOUS-SOLUTIONS; POLYMER BRUSHES; IONIC-STRENGTH;

D O I：

10.1007/12_2010_104

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Aqueous solutions of star-like polyelectrolytes (PEs) exhibit distinctive features that originate from the topological complexity of branched macromolecules. In a salt-free solution of branched PEs, mobile counterions preferentially localize in the intramolecular volume of branched macroions. Counterion localization manifests itself in a dramatic reduction of the osmotic coefficient in solutions of branched polyions as compared with those of linear PEs. The intramolecular osmotic pressure, created by entrapped counterions, imposes stretched conformations of branches and this leads to dramatic intramolecular conformational transitions upon variations in environmental conditions. In this chapter, we overview the theory of conformations and stimuli-induced conformational transitions in star-like PEs in aqueous solutions and compare these to the data from experiments and Monte Carlo and molecular dynamics simulations.

引用

页码：1 / 55

页数：55

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