Жарияланымдар / Публикации
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Тип записи:Публикация, Features of the extraction of yttrium and lanthanum with an intergel systembased on hydrogels of polyacrylic acid and poly-4-vinylpyridine(2020-03-30); ; ; ; Talkybek JumadilovFeatures of the extraction of yttrium and lanthanum with an intergel system based on hydrogels of polyacrylic acid and poly-4-vinylpyridineTo predict the sorption activity and selectivity of hydrogels, the effect of mutual activation of polymer networks in the intergel system was studied.The intergel system of the hydrogel of polyacrylic acid ((hPAA)) and the hydrogel of poly-4-vinylpyridine (hP4VP), which was studied at a distance through the volume of the solvent in the absence of direct contact between the polymer networks, were chosen as the object of study.Intergel systems have been investigated using methods for measuring electrical conductivity, pH, and gravimetry.The mutual activation of La 3+ and Y 3+ ions with the intergel system in an aqueous medium was also studied.It has been established that as a result of the remote interaction of the studied hydrogels, their mutual activation occurs, leading to a significant change in their electrochemical and conformational properties.At certain ratios of acidic and basic hydrogels, a significant increase in the sorption of lanthanum and yttrium ions is observed in comparison with the initial hydrogels.These results indicate the appearance of ionized structures with optimal conformation, providing an optimal ligand environment around lanthanum and yttrium ions.Цитирования (OpenAlex) 5Цитирования (OpenCitations) 2 - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, ОСОБЕННОСТИ ДИСТАНЦИОННОГО ВЗАИМОДЕЙСТВИЯ ГИДРОГЕЛЕЙ ПОЛИАКРИЛОВОЙ КИСЛОТЫ И ПОЛИЭТИЛЕНИМИНА(2021-04-17); ; ; J.V. GraẑulevičiusThe remote interaction between a weak polyacrylic acid polyelectrolyte (gpac) and a weak polyethyleneimine polybase (gpei) is studied as a function of time at their different molar ratios and states in an aqueous medium. To predict the possibility of activation of the studied hydrogels, electrochemical properties were studied by conductometry and pH metry. During pH measurement, it was found that 24 hours of pH have the lowest values, indicating a high content of H+ ions in the aqueous medium. The dependence of the specific electrical conductivity, the maximum value at the ratio of 3:3 (PAC:PEI) and it coincides with the result of pH from the ratio of components. The obtained results indicate that significant changes in the electrochemical and conformational values of the initial macromolecules in the interpolymer system occur in this interpolymer system. Thus, studies have shown on the presence of a remote interaction between hydrogels and their mutual activation. With an increase in the content of one of the hydrogels in the solution, a significant increase in the swelling of hydrogels is observed in proportion to the concentration of the second component, which indicates their mutual activation. References [1] Imangazy A.M., Jumadilov T.K., Kondaurov R.G., Zhora A.D. «Remote interaction» effect of polymer hydrogels on samarium ions sorption // Proceedings of XXI Mendeleev congress on general and applied chemistry, Saint-Petersburg, Russia, 9-13 September 2019. Vol. 2b, section 2. P. 154. [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 Interac- tion in an Aqueous Medium // J. Chem.-Chem. Eng. 2014. Vol. 8, No. 3. P. 265-269. [3] Jumadilov T.K. Electrochemical and conformational behaviour of intergel systems based on the rare crosslinked polyacid and polyvynilpyrydines International // Conference of Lithuanian Chemical Society “Chemistry and Chemical Technology” Proceedings of the International Conference, Kaunas, Lithuania, 2014. P. 226-229. [4] Jumadilov Т.K., Kondaurov R.G. Self-organization of polymer hydrogels of polyacrylic acid in intergel systems in cerium ions sorption process // Chemical Journal of Kazakhstan. 2018. No. 2. P. 254-262. [5] Yskak L.K., Dzhumadilov T.K., Myrzahmetovа N.O., Suberlyak O.V. Features of distance interaction and mutual activation of hydrogel polymethacrylic acid and anionite AV-17 // E. A. Bu-ketov Karagandy State University Institute of polymer materials and technology international science and technology center. Proceedings of the international symposium on specialty polymers. 2019. P. 106. [6] Jumadilov T.K., Kondaurov R.G. Features of selective sorption of lanthanum from solution, which contains ions of lanthanum and cerium by intergel system hydrogel of polymethacrylic acid: hydrogel of poly-2-methyl-5-vinylpyridine // Chemistry and industrial techniques for chemical engineers / A.K. Haghi, L. Pogliani, A.F. Ribeiro. AAP press, 2020. P. 149-174. [7] Jumadilov T.K., Kondaurov R.G., Imangazy A.M. Features of sorption of rare-earth metals of cerium group by intergel systems based on polyacrylic acid, polymethacrylic acid and poly-4-vinylpyridine hydrogels // Bulletin of the Karaganda university. Chemistry series. 2020. Vol. 98, No. 2. P. 58-67. [8] Saparbekova I.S., Suberlyak O.V., Yskak L.K., Malimbayeva Z.B., Myrzahmetovа N.O., Dzhumadilov T.K. Some features of the remote interaction of KU 2-8 cation exchanger with AB-17 anion exchanger // International Scientific And Technical Conference «Modern Technologies Of Production And Processing Of Polymeric Materials» Collection of Abstracts. 2019. Р. 87. [9] Jumadilov T.K., Kondaurov R.G., Imangazy A.M., Myrzakhmetova N.O., Saparbekova I. «Phenomenon of remote interaction and sorption ability of rare cross–linked hydrogels of polymethacrylic acid and poly-4-vinylpyridine in relation to erbium ions» // Chemistry and Chemical Technology. 2019. P. 451-458. [10] Totkhuskyzy B., Dzhumadilov T.K., Gražulevicius J.V. Some peculiarities of the inter-action of scandium and yttri ions with activated hydrogels // E. A. Buketov Karagandy State Univer-sity Institute of polymer materials and technology international science and technology center. Proceedings of the international symposium on specialty polymers. 2019. P. 104. [11] Jumadilov T.K., Malimbayeva Z.B., Yskak L.K., Myrzahmetovа N.O., Imangazy A., Suberlyak O.V. Sorption activity of interpolymer systems and molecularly imprinted polymers Based on vinyl monomers in relation to rare-earth and transition metal ions // X International Scientific-Technical Conference “Advance in Petroleum and Gas Industry and Petrochemistry” (APGIP-10) Ukraine, Lviv, May 18–23, 2020. P. 212-216. [12] Totkhuskyzy B., Yskak L.K., Saparbekova I.S., Myrzakhmetova N.O., Jumadilov T.K., Gražulevicius J.V. Features of the extraction of yttrium and lanthanum with an intergel system based on hydrogels of polyacrylic acid and poly-4-vinylpyridine // «Chemistry» series. 2020. No. 1(97). P. 60-67. DOI 10.31489/2020Ch1/60-67 - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, Specific features of praseodymium extraction by intergel system based on polyacrylic acid and poly-4-vinylpyridine hydrogels(2021-09-27); ; А. М. ImangazySome technological solutions contain valuable components and can become an additional source of rare-earth elements to satisfy the current production demands. This research provides the study on using a combination of polyacrylic acid hydrogel (hPAA) and hydrogel of poly-4-vinylpyridine (hP4VP) in different molar ratios for praseodymium ions sorption from its nitrate solution. The mutual activation of the hydrogels in an aqueous medium provides their transformation into a highly ionized state by the conformational and electrochemical changes in properties during their remote interaction. The electrochemical properties of solutions were studied by the methods of electrical conductivity, and pH measurements of the solutions. The research showed that the maximum activation of hydrogels was revealed within the molar ratio of hPAA:hP4VP equal to 1:5. Moreover, the total praseodymium ions sorption degree after 24 hours of sorption by individual hPAA and hP4VP was 54 % and 47 %, respectively, whereas the praseodymium ions sorption degree by the hPAA–hP4VP intergel system in the molar ratio 1:5 became 62 %. A slight increase in the sorption degree of praseodymium ions by the intergel system in comparison with individual hydrogels can be explained by the achievement of a higher ionization degree of hydrogels being activated in the hPAA–hP4VP interpolymer system by the remote interaction effect.Цитирования (OpenAlex) 9Цитирования (OpenCitations) 9 - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, Anomalous Sorption of Neodymium and Praseodymium Ions by Intergel System Polyacrylic Acid Hydrogel – Poly-4-Vinylpyridine Hydrogel(Lviv Polytechnic National University, 2022-02-10)Цитирования (OpenAlex) 1