Metal‐Ion‐Selective Exchange Resins by Matrix Imprint with Methacrylates

Cu2⊕ ions could be removed form waste water selectively and down to levels below the limit of detection with ion‐exchange resins in whcih copper(II) methacrylates had been used for their synthesis. This shows that the metal complexes present during the polymerization imprint the cavity structure of the resin such that ions of the same element are preferably taken up in the cavities after the elution of these metal ions.