Abstract
Poly(4-vinylpyridine), 4VP, resins cross-linked with oligo(ethylene glycol dimethacrylates) were used for chelating resins. Sorption for some metal ions by complexation in acetate buffer (pH 3-6) was investigated mainly by using the 4VP resins cross-linked with hydrophilic tetraethylene glycol dimethacrylate (4VP-4EG) and that cross-linked with hydrophobic divinylbenzene (4VP-DVB). The difference in cross-linkers of the 4VP resins strongly affected the sorption behavior, such as the pH profile of the sorption of metal ions and the capacity for Co(ll), Ni(ll) and Cu(ll). 4VP-4EG showed higher metal sorption than 4VP-DVB in acetate buffer, suggesting that hydrophilicity of the resin matrix, other than chelating groups, should be taken into account in the design of chelating resins.
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Sugh, A., Ogawa, N., Harada, K. et al. Metal Sorption of Macroreticular Poly(4-vinylpyridine) Resins Cross-Linked with Oligo(ethylene glycol dimethacrylates). ANAL. SCI. 4, 399–402 (1988). https://doi.org/10.2116/analsci.4.399
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DOI: https://doi.org/10.2116/analsci.4.399