FEATURES OF SORPTION OF URANYL IONS BY POLYMETHACRYLIC ACID-POLY-4-VINYLPYRIDINE INTERPOLYMER SYSTEM

Abstract

The sorption extraction of uranyl ions by interpolymer system consisting of polymethacrylic acid hydrogel (hPMAA) and poly-4-vinylpyridine hydrogel (hP4VP) was studied. Sorption and kinetic characteristics of initial polymers and hPMAA-hP4VP intergel system were determined. Maximum uranyl ions extraction rate - 82,8% - is observed in interpolymer system within the ratios of 100% hPMAA and 67% hPMAA:33%hP4VP 56 hours later,when polymeric chain binding rate was 9,97% and effective dynamic exchange capacity was 1,15mmol/g. Obtained outcomes show changes of initial polymeric hydrogels sorption properties ininterpolymer system, which makes it possible to use them for further development of highly efficient uranyl ions extraction sorption technology.

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