alexa Abstract | Synthesis and chelation ion-exchange properties of 2,4-HABF-IV terpolymer resin

Journal of Chemical and Pharmaceutical Research
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Abstract

The terpolymer resin 2, 4-HABF-IV has been synthesized by the condensation of 2, 4-dihydroxyacetophenone (2, 4- HA) and biuret (B) with formaldehyde (F) in 4:1:5 molar ratios in presence of 2M hydrochloric acid as catalyst. UV-Visible, IR and proton NMR spectral studies have been carried out to elucidate the structure of the resin. A terpolymer (2, 4-HABF-IV) proved to be a selective chelating ion exchange polymer for certain metals. Chelating ion-exchange properties of this polymer were studied for Fe3+, Cu2+, Ni2+, Co2+, Zn2+, Cd2+ and Pb2+ ions. A batch equilibrium method was employed in the study of the selectivity of metal ion uptake. The study was carried out over a wide pH range and in media of various ionic strengths. The polymer showed highest selectivity for Fe3+, Cu2+ ions than for Ni2+, Co2+, Zn2+, Cd2+, and Pb2+ ions. Study of distribution ratio as a formation of pH indicates that the amount of metal ion taken by resin is increases with the increasing pH of the medium.

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Author(s): Sanjiokumar S Rahangdale

Keywords

Synthesis, Resin, Ion-exchange, Distribution ratio, 2,4-HABF-IV terpolymer resin

 
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