Abstract
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 be␣4. 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-Cu2+ complex system.
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Received: 4 January 1999 Accepted in revised form: 1 February 1999
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Pekel, N., Güven, O. Investigation of complex formation between poly(N-vinyl imidazole) and various metal ions using the molar ratio method. Colloid Polym Sci 277, 570–573 (1999). https://doi.org/10.1007/s003960050426
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DOI: https://doi.org/10.1007/s003960050426