On the complexation of Ag(I) and Cu(II) ions with poly(N-vinylimidazole)

Miyajima, Tohru; Nishimura, Hironori; Kodama, Hiroki; Ishiguro, Shin

doi:10.1016/s1381-5148(98)00037-6

Cited by 26 publications

(15 citation statements)

References 18 publications

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“…5,6 Poly(VIm) ligands form multidentate complexation systems with Ag 1 and Cu 21 ions with two and four coordination numbers, respectively. [7][8][9][10][11][12][13][14] Radiation grafting is an easy and highly efficient procedure for modifying the properties of polymeric substrates of synthetic as well as natural origin. Radiation grafting offers some unique advantage over the conventional chemical grafting method.…”

Section: Introductionmentioning

confidence: 99%

Chemical modification of polypropylene fibers grafted vinyl imidazole/acrylonitrile copolymer prepared by gamma radiation and its possible use for the removal of some heavy metal ions

Mostafa

2008

J of Applied Polymer Sci

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The chemical modification of polypropylene (PP) fibers by graft copolymerization with vinylimidazole (VIm) and acrylonitrile (AN) was carried out using g-radiation. Preparation conditions, such as irradiation dose, comonomer concentration and composition and type of solvent, affecting the degree of grafting were investigated. The suitable diluent for obtaining reasonable graft VIm/ AN copolymer yield was acetone. The higher grafted yield was achieved by increasing the amount of vinylimidazole in comonomer feed solution as well as irradiation dose. The derivatives of PP-g-P(VIm/AN) grafted fibers of different functional groups were obtained by treating the grafted fibers with various organic reagents containing reactive amino groups, such as sulpha-drug compounds, aliphatic-and aromatic amines. Characterization of the obtained graft copolymers and their chemical treatments with different amines was also investigated. It was observed that the nitrile group in PP-g-P(VIm/AN) polymer undergoes simple addition reaction via nucleophilic interaction mechanism to produce the corresponding PPgraft-P(vinylimidazole/acrylomidine) derivatives. The ability of the grafted fibers and their treated forms to absorb some metal ions as Cd, Hg, and Pb from their individual and mixture solutions was evaluated.

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Section: Introductionmentioning

confidence: 99%

Chemical modification of polypropylene fibers grafted vinyl imidazole/acrylonitrile copolymer prepared by gamma radiation and its possible use for the removal of some heavy metal ions

Mostafa

2008

J of Applied Polymer Sci

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“…Until now, the strength of the Cu 21 -vinyl imidazole complex has been determined only in the water-soluble linear poly (1-vinyl imidazole) systems. 13,25,26 To our knowledge, this is the first report on the potentiometric, kinetic, and thermodynamic investigations into the Cu 21 ion binding properties of a solid IMA chromatography adsorbent containing vinyl imidazole as a chelating agent.…”

Section: Introductionmentioning

confidence: 92%

Potentiometric, kinetic, and thermodynamic investigations into Cu²⁺ ion binding properties of vinyl imidazole containing IMAC adsorbent

Çam

Osman

Kara

et al. 2013

J of Applied Polymer Sci

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In this study, the use of the potentiometric method for the determination of the protonation constant of vinyl imidazole (VIM) and the stability constant of the Cu 21 ion complex of VIM used in the immobilized metal ion affinity chromatography (IMAC) was investigated. For this purpose, poly(ethylene glycol dimethacrylate-n-vinyl imidazole) [poly(EGDMA-VIM)] microspheres (average diameter 150-200 lm) were prepared. The microspheres were characterized by elemental analysis, N 2 adsorption/ desorption isotherms, elemental analysis, energy dispersive spectroscopy (EDS). Protonation constants of vinyl imidazole and the metal-ligand stability constant of vinyl imidazole with Cu 21 ions have been determined potentiometrically in 0.1M NaCl aqueous solution at 298, 318, and 338 K, respectively. The corresponding thermodynamic parameters of protonation and complexation processes (DG, DH, and DS) were derived and discussed. The formation kinetics of Cu 21 -vinyl imidazole complex were also investigated, and the process obeyed the pseudo-second-order kinetic model.

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“…The predominant formation of complexed heterodiad linkages in copolymer chains is also confirmed by calculated values of different probabilities (P ij ) for m 1 m 2 (around 0.53-0.95) and m 2 m 1 (around 0.73-0.98) alternating linkages (Table 3). P ij is the probability for ij diad linkages in the copolymer chain which is calculated from constants of copolymerization [r 1 ¼ 0.22 (VIM) and r 2 ¼ 0.094 (AN)] using the known Equation (10). [37] P ij ¼ 1=ð1 þ r i FÞ and…”

Section: Determination Of Monomer Reactivity Ratiosmentioning

confidence: 99%

“…[8,9] Poly(VIM) ligands form multidentate complexation systems with Ag þ and Cu 2þ ions with two and four coordination numbers, respectively. [10] The copolymerization of VIM with different donoracceptor monomers, such as styrene, [11] 4-amino-styrene, [7] vinyl acetate, [11] N-vinylpyrrolidone, [11] methyl acrylate, [12] methyl methacrylate, [11] maleic anhydride, [13,14] dialkyl fumarates, and maleates, [15,16] and the determination of the monomer reactivity ratios have been also reported. It was shown that these imidazole-containing copolymers obtained from a wide range of monomer feeds had different compositions, which vary from random to alternating.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Poly(N‐vinylimidazole‐co‐acrylonitrile) and Determination of Monomer Reactivity Ratios

Pekel

Rzaev

Güven

2004

Macro Chemistry & Physics

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Summary: Radical‐initiated solution copolymerization of N‐vinylimidazole (VIM) and acrylonitrile (AN) was carried out with 2,2′‐azobisisobutyronitrile (AIBN) as an initiator in benzene at 70 °C in nitrogen atmosphere. The structure and composition of synthesized copolymers for a wide range of monomer feeds were determined by FTIR, 1H and 13C NMR spectroscopy with the aid of recorded analytical absorption bands for VIM (667 cm−1, CN of imidazole ring) and AN (2 242 cm−1, CN group), as well as by using the areas of proton and carbon atom signals from corresponding functional groups of monomer units. Monomer reactivity ratios for VIM (M1)‐AN (M2) pair were determined by nonlinear regression (NLR), Kelen–Tüdös (KT) and Fineman–Ross (FR) methods. They were found to be r1 = 0.24 and r2 = 0.15 for the NLR method, r1 = 0.22 and r2 = 0.094 for the KT method, and r1 = 0.24 and r2 = 0.12 for the FR method, respectively. The relatively high activity observed of VIM growing macroradical and the results of FTIR and 1H NMR structural analysis of copolymers suggest the formation of complexed linkages between monomers and growing radicals in chain propagation reactions. Similar complexation between monomer–comonomer units in the structure of formed macromolecules showed an increase in isotactic triad fractions in the copolymer.Complex formation between the imidazole ring and nitrile group in both the monomer mixture and chain growing reactions.imageComplex formation between the imidazole ring and nitrile group in both the monomer mixture and chain growing reactions.

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On the complexation of Ag(I) and Cu(II) ions with poly(N-vinylimidazole)

Cited by 26 publications

References 18 publications

Chemical modification of polypropylene fibers grafted vinyl imidazole/acrylonitrile copolymer prepared by gamma radiation and its possible use for the removal of some heavy metal ions

Chemical modification of polypropylene fibers grafted vinyl imidazole/acrylonitrile copolymer prepared by gamma radiation and its possible use for the removal of some heavy metal ions

Potentiometric, kinetic, and thermodynamic investigations into Cu²⁺ ion binding properties of vinyl imidazole containing IMAC adsorbent

Synthesis and Characterization of Poly(N‐vinylimidazole‐co‐acrylonitrile) and Determination of Monomer Reactivity Ratios

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On the complexation of Ag(I) and Cu(II) ions with poly(N-vinylimidazole)

Cited by 26 publications

References 18 publications

Chemical modification of polypropylene fibers grafted vinyl imidazole/acrylonitrile copolymer prepared by gamma radiation and its possible use for the removal of some heavy metal ions

Chemical modification of polypropylene fibers grafted vinyl imidazole/acrylonitrile copolymer prepared by gamma radiation and its possible use for the removal of some heavy metal ions

Potentiometric, kinetic, and thermodynamic investigations into Cu2+ ion binding properties of vinyl imidazole containing IMAC adsorbent

Synthesis and Characterization of Poly(N‐vinylimidazole‐co‐acrylonitrile) and Determination of Monomer Reactivity Ratios

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Potentiometric, kinetic, and thermodynamic investigations into Cu²⁺ ion binding properties of vinyl imidazole containing IMAC adsorbent