Quantifying chloride binding and salt extraction with poly(methyl methacrylate) copolymers bearing aryl-triazoles as anion receptor side chains

Abstract

Copolymers of methyl methacrylate and aryl-triazole based anion receptors were quantitatively analyzed. Transfer of structural features (1 : 1 and 2 : 1 complexes) and Cl⁻ affinities from the parent receptors was demonstrated. Cl⁻-induced cross-linking changed the polymer's hydrodynamic radius. Extraction of tetrapropylammonium Cl⁻ from water to dichloromethane was enhanced over PMMA.