Specific features of uranyl ions extraction by interpolymer system based on polyacrylic acid and polyethyleneimine hydrogels

A. Utesheva; V. Juozas

doi:10.31643/2021/6445.42

Authors

A. Utesheva «Kazakh-British Technical University" Joint Stock Company
V. Juozas Kaunas University of Technology

DOI:

https://doi.org/10.31643/2021/6445.42

Keywords:

hydrogels, interpolymer systems, sorption, polyacrylic acid, polyethylenimine, uranyl ion.

Abstract

Uranyl ions sorption of by interpolymer system consisting of polyacrylic acid hydrogel (hPAA) and polyethyleneimine hydrogel (hPEI) has been studied. Rate of uranyl ions extraction by the initial polymers and interpolymer system hPAA-hPEI, polymeric chain binding rate and dynamic exchange capacity of initial polymers and interpolymer system hPAA-hPEI were calculated. Based on obtained outcomes it was found that area of maximum rate of uranyl ions extraction is within the ratios of 67%hPAA:33%hPEI and 33%hPAA:67%hPEI. Maximum uranyl ions extraction rate after 48 hours of hydrogels remote interaction was 90.0 %, when polymeric chain binding rate was 9.1 % and dynamic exchange capacity was 1.14 mmol/g. Rate of uranyl ions extraction by the initial polymer hydrogels 100 % hPAA and 100 % hPEI was 68.0 % and 52.0%. Obtained outcomes showed changes of initial polymeric hydrogels sorption properties in intergel system leading to functional groups obtaining higher reactive ability, which makes it possible to use them for further development of highly efficient uranyl ions extraction sorption technology.

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Author Biographies

A. Utesheva , «Kazakh-British Technical University" Joint Stock Company

Ph.D student, School of Chemical Engineering.

V. Juozas, Kaunas University of Technology

Doctor of Chemical Sciences, Professor, Department of Polymer Chemistry and Technology.

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