Adsorption of graft copolymers of polyacrylamide to polyvinyl alcohol and its effect on the electrokinetic potential of silica

被引:0
|
作者
Malysheva, M.L. [1 ]
Rusina, O.D. [1 ]
Kutsevol, N.V. [1 ]
Zeltonozhskaya, T.V. [1 ]
Eremenko, B.V. [1 ]
机构
[1] Natsional'nyj Univ im. Tarasa, Shevchenko, Kiev, Ukraine
来源
| 1996年 / Naukova Dumka, Moscow, Russian Federation卷 / 62期
关键词
Acrylics - Conformations - Electric charge - Graft copolymers - Polyvinyl alcohols - Silica;
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摘要
Adsorption of graft copolymers (GC) of poly(acrylamide) to poly(vinyl alcohol) depends on the degree of grafting, reduces the absolute values of negative electrokinetic potential, but does not change the surface charge density of silica. Comparison of the 'electrokinetic' adsorption layer thicknesses of GC with the molecular size in solution leads to the conclusion about the considerable deformation of intermolecular polymer complex in transition on the surface.
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页码:5 / 6
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