Effect of polymer concentration on the surface properties of polyacid-poly(N-vinylpyrrolidone) complexes

被引：6

作者：

Abdiyev, KZ ^{[1
]}

Shaikhutdinov, EM ^{[1
]}

Zhursumbaeva, MB ^{[1
]}

Khussain, SK ^{[1
]}

机构：

[1] Satpaev Kazakh Natl Tech Univ, Alma Ata 480013, Kazakhstan

来源：

COLLOID JOURNAL | 2003年 / 65卷 / 04期

关键词：

Polymer; Viscosity; Free Energy; Titration; Surface Tension;

D O I：

10.1023/A:1025105631381

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：

The effect of polymer concentration on the surface properties of equimolar interpolymer complexes of polyacrylic and polymethacrylic acids with poly(N-vinylpyrrolidone) is studied at 298 K by measuring surface tension, conductivity, and viscosity, as well as by the potentiometric titration of mixed polymer solutions. The surface activity and the standard free energy of the adsorption of the individual polyelectrolytes and interpolymer complexes are calculated from the surface tension isotherms. Complexation is shown to increase the surface activity and decrease the standard free energy of the adsorption of macromolecules.

引用

页码：399 / 402

页数：4

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