Swelling of polyacrylamide-based hydrogel in aqueous solutions of low-molecular salts
https://doi.org/10.29235/1561-8323-2020-64-3-293-299
Abstract
The swelling kinetics of cross-linked polyacrylamide was studied depending on the composition of the external solution. It was shown that the polymer gel swelling during the transition from water to a potassium or sodium chloride solution and vice versa sharply decreases, then gradually increases. The swelling of gel in a solution of sodium chloride is higher than that of potassium chloride. In the equilibrium swollen gel, the concentration of salts in the gel phase is higher than in the external solution and increases with the transition from potassium chloride to sodium chloride.
About the Author
E. V. Vorobieva
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Vorobieva Elena V. – D. Sc. (Chemistry), Associate professor, Head of the Laboratory
9/1, Surganov Str., 220072, Minsk
References
1. Rogovina L. Z., Vasil’ev V. G., Braudo E. E. Definition of the concept of polymer gel. Polymer science, Series C, 2008, vol. 50, no. 1, pp. 85−92. https://doi.org/10.1134/s1811238208010050
2. Inagamov S. ya., Mukhamedzhanova M. yu., Mukhamedov G. I. Polycomplex gels based on sodium carboxymethyl cellulose – new drug prolongators. Khimija rastitel’nogo syr’ ja [Chemistry of Plant Raw Material], 2011, no. 2, pp. 51–56 (in Russian).
3. Filippova O. E. Responsive polymer gels. Vysokomolekulyarnye soedineniya = Polymer science, Series C, 2000, vol. 42, no. 12, pp. 2328–2352.
4. Sing Сh. E., Zwanikken J. W., Cruz M. O. Effect of Ion–Ion Correlations on Polyelectrolyte Gel Collapse and Reentrant Swelling. Macromolecules, 2013, vol. 46, no. 12, pp. 5053–5065. https://doi.org/10.1021/ma400372p
5. Shashkina yu. A., Zaroslov yu. D., Pryakhina T. A., Blagodatskikh I. V., Filippova O. E., khokhlov A. R. The effect of pH during polymerization on the properties of a weakly charged hydrophobically modified polyacrylamide. Struktura i dinamika molekulyarnykh sistem [Structure and Dynamics of Molecular Systems]. kazan’, 2003, vol. 10, part 1, pp. 202−205 (in Russian).
6. Elyashevich G. k., Bel’nikevich N. G., Vesnebolotskaya S. A. Swelling-contraction of sodium polyacrylate hydrogels in media with various pH values. Polymer Science. Series A, 2009, vol. 51, no. 5, pp. 550–553. https://doi.org/10.1134/s0965545x09050095
7. Sareen R., kumar S., Gupta G. D. Meloxicam Carbopol-based gels: characterization and evaluation. Current Drug Delivery, 2011, vol. 8, no. 4, pp. 407−415. https://doi.org/10.2174/156720111795768013
8. Philippova O. E. «Smart» polymeric hydrogels. Priroda [Nature], 2005, no. 8, pp. 11−17 (in Russian).
9. Sircar S., keener J. P., Fogelson A. L. The effect of divalent vs. monovalent ions on the swelling of Mucin-like polyelectrolyte gels: Governing equations and equilibrium analysis. Journal of Chemical Physics, 2013, vol. 138, no. 1, art. 014901. https://doi.org/10.1063/1.4772405
10. Mochalova A. E., Budruev A. V., Oleinik A. V., Smirnova L. A. Thermo- and pH-sensitive hydrogels on chitozan base, obtained with use of diazide of terephthalic acid. Perspektivnye materialy [Promising materials], 2009, no. 5, pp. 61−65 (in Russian).
11. Golubovsky D. N., Ivanov V. A., khokhlov A. R. Transition of the ball-globule in a realistic model of N-isopropyl acrylamide: computer experiment. Vestnik Moskovskogo universiteta. Seriya 3: Fizika. Astronomiya [Moscow University Physics Bulletin. Series 3. Physics. Astronomy], 2008, no. 3, pp. 64−66 (in Russian).
12. Osada y., Gong J. P. Tanaka y. Polymer gels. Journal of Macromolecular Science, Part C: Polymer Reviews, 2004, vol. 44, no. 1, pp. 87–112. https://doi.org/10.1081/mc-120027935
13. Soldatov V. S., Davlyud D. N., Bezyazychnaya T. V., Vorobieva E. V., kasandrovich E. G., Vorobiev P. D. State of ions and water molecules in the water salt solutions of polyacrylamide and co-polymer of “acrylamide–acrylic acid Na/k salt”. Doklady Natsional’noi akademii nauk Belarusi = Doklady of the National Academy of Sciences of Belarus, 2019, vol. 63, no. 6, pp. 695–703 (in Russian). https://doi.org/10.29235/1561-8323-2019-63-6-695-703
14. Ferapontov N. B., Tokmachev M. G., Gagarin A. N. The properties of water in solutions of hydrophilic polymers. Russian Journal of Physical Chemistry, 2009, vol. 83, no. 8, pp. 1321−1325.
15. Davlyud D. N., Vorobieva E. V., Layeuskaya Е. V., krutko N. P., Vorobiev P. D., Сherednichenko D. V. Rheological properties and concentration cross-overs of polyacrylamide and anionic (co)polymers of аcrilamide in aqueous-salt solutions. Doklady Natsional’noi akademii nauk Belarusi = Doklady of the National Academy of Sciences of Belarus, 2017, vol. 61, no. 4, pp. 69–76 (in Russian).
16. Shevchenko T. V., Ul’rikh E. V., yakovchenko M. A., Pirogov A. N., Smirnov O. E. Rheological properties of polyacrylamide-based hydrogels. Colloid Journal, 2004, vol. 66, no. 6, pp. 756–759. https://doi.org/10.1007/s10595-005-0019-2
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