SELF-ORGANIZATION OF POLYMER HYDROGELS OF POLYACRYLIC ACID IN INTERGEL SYSTEMS IN CERIUM IONS SORPTION PROCESS

Abstract

Sorption process of cerium ions by intergel systems hydrogel of polyacrylic acid (hPAA) – hydrogel of poly-4-vinylpyridine (hP4VP) and hydrogel of polyacrylic acid (hPAA) – hydrogel of poly-2-methyl-5-vinylpyridine (hP2M5VP) is studied. Found that self-organization of PAA hydrogels is in significant influence from structure of basic hydrogel. Absence of bulky methyl substituent in the structure of hP4VP provides faster ionization of the hydrogels in intergel system hPAA-hP4VP in comparison with system hPAA-hP2M5VP. Extraction degree of cerium ions of individual hydrogels of PAA, P4VP and P2M5VP is 63.33%, 56.67% and 50.00% respectively. At 17%hPAA83%hP4VP and 33%hPAA-67%hP2M5VP ratios 92.33% and 90.67% cerium is extracted. PAA, P4VP, P2M5VP polymer hydrogels have not very high values of polymer chain binding degree (52.53%, 47.00% and 41.47% respectively). Maximum values of polymer chain binding degree in the intergel systems are observed at ratios: 17%hPAA-83%hP4VP (binding degree is 76.59%) and 33%hPAA-67%hP2M5VP (polymer chain binding degree is 75.21%).

References

[1] Alimbekova B., Erzhet B., Korganbayeva Zh., Himersen H., Kaldaeva S., Kondaurov R., Jumadilov T. Electrochemical and conformational properties of intergel systems based on the crosslinked polyacrylic acid and vinylpyridines // Proceedings of VІІ international scientific-technical conference “Advance in petroleum and gas industry and petrochemistry” (APGIP-7). Lviv, Ukraine, May 2014. P. 64.
[2] Alimbekova B.T., Korganbayeva Zh.K., Himersen H., Kondaurov R.G., Jumadilov T.K. Features of polymethacrylic acid and poly-2-methyl-5-vinylpyridine hydrogels remote interaction in an aqueous medium // Journal of chemistry and chemical engineering. 2014. Vol. 3. P. 265-269.
[3] Jumadilov T.K., Abilov Zh.A., Kaldayeva S.S., Himersen H., Kondaurov R.G. Ionic equillibrium and conformational state in intergel system based on polyacrylic acid and poly-4vinylpyridine hydrogels // Journal of Chemical Engineering and Chemistry Research. 2014. Vol. 1. P. 253- 261.
[4] Jumadilov T.K., Abilov Zh.A., Kondaurov R.G., Himersen H., Akylbekova M.A. Remote interaction of hydrogels in intergel system hydrogel of polyacrylic acid – hydrogel of poly-2methyl-5-vinylpyridine // Chemical journal of Kazakhstan. 2015. N 2. P. 79-84.
[5] Akylbekova M.A., Kondaurov R.G., Jumadilov T.K., Umerzakova M.B. Features of swelling and electrochemical properties of polyacrylic acid gel // Chemical journal of Kazakhstan. 2015. N 4. P. 31-37.
[6] Jumadilov Т.К., Kondaurov R.G., Khakimzhanov S.А., Himersen H., Yeskaliyeva G.К. Influence of initial state of hydrogels on self-organization of polymer networks of polymethacrylic acid and poly-4-vinylpyridine at their remote interaction in an aqueous medium // Chemical journal of Kazakhstan. 2018. N 1. P. 42-48.
[7] Petruhin О.М. Practice book on physical and chemical methods of analysis. М.: Chemistry, 1987. P. 77-80.
[8] Jumadilov T.K., Kondaurov R.G., Abilov Zh.A., Grazulevicius J.V., Akimov A.A. Influence of polyacrylic acid and poly-4-vinylpyridine hydrogels mutual activation in intergel system on their sorption properties in relation to lanthanum (III) ions // Polymer Bulletin. 2017. Vol. 74. P. 4701-4713. doi:10.1007/s00289-017-1985-3.
[9] Jumadilov T., Abilov Zh., Grazulevicius J., Zhunusbekova N., Kondaurov R., Agibayeva L., Akimov A. Mutual activation and sorption ability of rare cross-linked networks in intergel system based on polymethacrylic acid and poly-4-vinylpyridine hydrogels in relation to lanthanum ions // Journal of Chemistry and Chemical Technology. 2017. Vol. 11, N 2. P. 188-194.
[10] Jumadilov T.K., Abilov Zh.A., Kondaurov R.G. Intergel systems: highly effective instruments for rare earth elements extraction from industrial solutions / Jumadilov T.K. // Chemical engineering of polymers. Production of Functional and Flexible Materials composites / Omari V. Mukbaniani, Marc J.M. Abadie, Tamara Tatrishvilli. AAP press, 2017. P. 267-279.