Hydrodynamic and adsorption properties of anionic acrylamide copolymers in water-salt media
https://doi.org/10.29235/1561-8331-2019-55-4-455-463
Abstract
Rheological properties and concentration cross-overs of anionic acrylamide copolymers in saline solutions (potassium chloride) were investigated by using capillary viscometer method. Area of non-overlapping coils between the crossover concentration and the concentration of fluctuation mesh formation was determined; it was shown that with increase of salt concentration this area practically disappears, i.e. mass transfer mechanism changes near the crossover concentration. It was shown that at low concentrations of potassium chloride increasing the content of ionic groups of macromolecules leads to reduction in the crossover concentration and increase in the effective volume. It is found that the kaolin adsorption capacity decreases when polymers are adsorbed from saline solution, and the adsorption constant is significantly higher in the presence of salt than in water.
About the Authors
D. N. Davlyud
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Daria N. Davlyud – Researcher.
9/1, Surganov Str., 220072, Minsk
P. D. Vorobiev
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Pavel D. Vorobiev – Ph. D. (Chemistry), Leading Researcher.
9/1, Surganov Str., 220072, Minsk
Yu. V. Lipai
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Yuliya V. Lipai – Ph. D. (Chemistry), Senior Researcher.
9/1, Surganov Str., 220072, Minsk
E. V. Vorobieva
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Elena V. Vorobieva – D. Sc. (Chemistry), Associate Professor, Head of the Laboratory of Polymer-Containing Disperse Systems.
9/1, Surganov Str., 220072, Minsk
S. V. Bucha
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Svetlana V. Bucha – Junior Researcher.
Belarus
Svetlana V. Bucha – Junior Researcher.
A. R. Chernikova
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Anastasiya R. Chernikova – Researcher.
9/1, Surganov Str., 220072, Minsk
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