Single flexible hydrophobic polyelectrolyte molecules adsorbed on solid substrate: Transition between a stretched chain, necklace-like conformation and a globule

被引：130

作者：

Minko, S ^{[1
]}

Kiriy, A ^{[1
]}

Gorodyska, G ^{[1
]}

Stamm, M ^{[1
]}

机构：

[1] Inst Polymerforsch Dresden, D-01069 Dresden, Germany

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2002年 / 124卷 / 13期

关键词：

D O I：

10.1021/ja017767r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Single flexible polyelectrolyte molecules of poly(2-vinylpyridine) undergo conformational transition from a stretched wormlike coil to a necklace-like globule, and to a compact globule depending on pH and ionic strength in aqueous solution in good agreement with recent theoretical reports. AFM investigations allow the visualization of details of the chain conformation on mica and the extraction of quantitative statistics of molecular dimensions. Copyright © 2002 American Chemical Society.

引用

收藏

页码：3218 / 3219

页数：2

相关论文

共 22 条

[1] Imaging of single polyethylenimine polymers adsorbed on negatively charged latex spheres by chemical force microscopy [J].

Akari, S ;

Schrepp, W ;

Horn, D .

LANGMUIR, 1996, 12 (04) :857-860

[2] Synthesis of molecular brushes with block copolymer side chains using atom transfer radical polymerization [J].

Börner, HG ;

Beers, K ;

Matyjaszewski, K ;

Sheiko, SS ;

Möller, M .

MACROMOLECULES, 2001, 34 (13) :4375-4383

[3] Cascade of transitions of polyelectrolytes in poor solvents [J].

Dobrynin, AV ;

Rubinstein, M ;

Obukhov, SP .

MACROMOLECULES, 1996, 29 (08) :2974-2979

[4] Cylindrical molecular brushes [J].

Dziezok, P ;

Sheiko, SS ;

Fischer, K ;

Schmidt, M ;

Möller, M .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1997, 36 (24) :2812-2815

[5] Surface morphology and phase behavior of flexible polymer in fluid liquid crystal monolayers [J].

Ibn-Elhaj, M ;

Ouali, L ;

Papastavrou, G ;

Möhwald, H .

LANGMUIR, 1999, 15 (04) :1528-1533

[6] COLLAPSE OF WEAKLY CHARGED POLY-ELECTROLYTES [J].

KHOKHLOV, AR .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1980, 13 (03) :979-987

[7] Computer simulation studies of a single polyelectrolyte chain in poor solvent [J].

Lyulin, AV ;

Dünweg, B ;

Borisov, OV ;

Darinskii, AA .

MACROMOLECULES, 1999, 32 (10) :3264-3278

[8] Strongly charged, flexible polyelectrolytes in poor solvents: Molecular dynamics simulations [J].

Micka, U ;

Holm, C ;

Kremer, K .

LANGMUIR, 1999, 15 (12) :4033-4044

[9] Oscillation phenomenon at polymer adsorption [J].

Minko, S ;

Voronov, A ;

Pefferkorn, E .

LANGMUIR, 2000, 16 (20) :7876-7878

[10] Adsorption of semiflexible polyelectrolytes on charged planar surfaces: Charge compensation, charge reversal, and multilayer formation [J].

Netz, RR ;

Joanny, JF .

MACROMOLECULES, 1999, 32 (26) :9013-9025