Porous Chelating Resins from Poly(Acrylonitrile-co-Ethyl Acrylate-co-Divinylbenzene)

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Abstract
Porous chelating resins have been prepared from acrylonitrile–ethyl acrylate–divinylbenzene copolymers by suspension polymerization with inert diluent followed by reaction with hydroxylamine. The porous structure was characterized by scanning electron microscope and varied greatly with the monomer composition and the amount of diluent. The metal binding properties of the chelating resins containing amidoxime and hydroxamic acid ligands derived from the terpolymers were examined with an atomic absorption spectrometer and an inductively coupled plasma spectrometer. This type of chelating resin has some advantages, e.g., ease of preparation (macroreticular) and particular selectivity for metal ions.