Synthese von chelatbildenden ionenaustauschern auf der basis von Polystyrol

Abstract

Die Synthese von selektiven Chelataustauschern auf der Basis von Polystyrol wird beschrieben. Die Verbindungen werden gewonnen durch Nitrierung von Polystyrol, Reduktion, Diazotierung und Kupplung mit Chelatbildnern, insbesondere mit Phenolderivaten und aromatischen Aminen.

Metal ion enrichment with Amberlite XAD-2 functionalized with Tiron: analytical applications

“…44 However, Tiron functionalized resins have never been extensively explored for the preconcentration of metal ions. There are only brief preliminary reports 45,46 on the metalsorption behaviour of Tiron functionalized cellulose, polystyrene and polystyrene-divinylbenzene (3%) copolymer. It was therefore thought worthwhile to synthesize a chelating resin by covalently linking Tiron with Amberlite XAD-2 and to investigate its enrichment behaviour for divalent Cu, Cd, Co, Ni, Pb, Zn and Mn, and trivalent Fe and UO 2 II .…”

Chelating Resins and Their Applications in the Analysis of Trace Metal Ions

“…Columns filled with Amberlite XAD resin and related polymeric supports have been used for the preconcentration and separation of trace metal ions from various matrices (13)(14)(15)(16). The Amberlite XAD resins used by Parrish and co-workers (15,20,51) were Amberlite XAD-2 (polystyrene type), Amberlite XAD-4 (polystyrene-divinylbenzene copolymer type), Amberlite XAD-7 (acrylic ester type), etc.…”