INFLUENCE OF DISTANT ACTION EFFECT BETWEEN POLYMETHACRYLIC ACID AND POLY-4-VINYLPYRIDINE HYDROGELS ON THE SORPTION ABILITY OF ERBIUM IONS

Abstract

The phenomenon of sorption erbium ions by intergel system of polymethacrylic acid hydrogel (PMAA) and poly-4-vinylpyridine hydrogel(P4VP) was studied. It was established that the structure of the basic hydrogel has a significant influence on the self-organization of the PMAA hydrogels. The erbium ions extraction rateof individual hydrogels PMAA and P4VP was 42% and 16%, respectively. At ratios 5:1 (83% of gPMAA-17% gP4VP) and 4:2 (67% gMPAA-33% gP4VP), erbium ions were recovered up to 54% in both cases. The polymer PMAA and P4VP hydrogels have relatively low values of the polymer chain binding degree (0.54% and 0.20%, respectively). The obtained results indicate the possibility of creating selective intergel systems for separation erbium ions.

References

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