Investigation of complex formation between poly(N-vinyl imidazole) and various metal ions using the molar ratio method |
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| Authors: | N Pekel O Güven |
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| Institution: | (1) Department of Chemistry Hacettepe University 06532 Beytepe, Ankara, Turkey, TR |
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| 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.
Received: 4 January 1999 Accepted in revised form: 1 February 1999 |
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| Keywords: | Poly(N-vinyl imidazole) Complexation Molar ratio method UV spectroscopy |
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