Scanning probe microscopy of adsorption layers of sodium polystyrenesulfonate/dodecyltrimethylammonium bromide complexes

被引：10

作者：

Akentiev, A. V. ^{[1
]}

Bilibin, A. Yu. ^{[1
]}

Zorin, I. M. ^{[1
]}

Lin, S. -Y. ^{[2
]}

Loglio, G. ^{[3
]}

Miller, R. ^{[4
]}

Noskov, B. A. ^{[1
]}

机构：

[1] St Petersburg State Univ, Dept Chem, St Petersburg 198504, Russia

[2] Natl Taiwan Univ Sci & Technol, Dept Chem Engn, Sect 4, Taipei 106, Taiwan

[3] Univ Firenze, Dipartimento Chim Organ, I-50019 Florence, Italy

[4] MPI Kolloid & Grenzflachenforsch Wissenschspark G, D-14424 Golm, Germany

来源：

COLLOID JOURNAL | 2011年 / 73卷 / 04期

关键词：

CHARGED POLYELECTROLYTE/SURFACTANT MIXTURES; DYNAMIC SURFACE-PROPERTIES; AIR/WATER INTERFACE; POLYMER/SURFACTANT INTERACTION; DILATIONAL VISCOELASTICITY; NEUTRON REFLECTION; MONOLAYERS; CHLORIDE); TENSION; FILMS;

D O I：

10.1134/S1061933X11040028

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：

Scanning probe microscopy is used to study adsorption films of sodium polystyrenesulfonate/dodecyltrimethylammonium bromide complexes, which are transferred from aqueous solution surfaces to the mica surface by the Langmuir-Blodgett method. It is established that the results obtained at surfactant concentrations below critical micelle concentration agree with the conclusions on the structure of the films dased on the data of the dilatational surface rheology (Noskov, B.A., Loglio, G., Miller, R., J. Phys. Chem. B, 2004, vol. 108, p. 18615). At low concentrations of the low-molecular-mass surfactant, a thin adsorption film containing a large number of holes is formed on the surface of an aqueous solution. As the surfactant concentration is increased to reach the region of a dramatic reduction in the dynamic surface elasticity, the morphology of the film drastically changes; i.e., dense three-dimensional aggregates are formed on the solution surface.

引用

页码：437 / 444

页数：8

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