Investigation of complex formation between poly(N-vinyl imidazole) and various metal ions using the molar ratio method

• Published in: Colloid and polymer science Vol. 277; no. 6; pp. 570 - 573
• Main Authors: PEKEL, N, GÜVEN, O
• Format: Journal Article
• Language: English
• Published: Berlin Springer 01-06-1999; Springer Nature B.V
• Subjects: Applied sciences; Aqueous solutions; Complex formation; Complex systems; Constants; Exact sciences and technology; Imidazole; Ions; Mathematical analysis; Metal ions; Metals; Organic polymers; Physicochemistry of polymers; Properties and characterization; Solution and gel properties; Transition metals; Stoichiometry; Binding capacity; Complexing agent; Imidazole(vinyl) polymer; Metal ion; Stability constant; Transition metal Complexes; Aqueous solution; Experimental study
• ISSN: 0303-402X; 1435-1536
• DOI: 10.1007/s003960050426

The complex formation of poly(N-vinyl imidazole) (PVIm) with various metal ions was studied. UV-vis spectroscopy was employed to study the interaction of PVIm and metal ions in aqueous solution. Formation constants of PVIm-metal complexes were calculated by applying a "mole ratio" method. The stoichiometric ratios between polymer and metal ions were found to be4. The stability constants for the complexes of PVIm with bivalent transition metal ions were in agreement with the Irving-William series. The biggest formation constant was found for the PVIm-Cu^sup 2+^ complex system.[PUBLICATION ABSTRACT]