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A novel chelating resin containing amidoxime–guanidine functional group, PSGA resin, has been first synthesized from the functionalization of chloromethylated poly (styrene–divinylbenzene) (CMPS) bead with dicyandiamide (DCDA); the nitrile group in MPS/DCDA bead was changed into amidoxime group by treatment with hydroxylamine under alkaline condition, successively. The resulting PSGA resin was characterized...
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