Preparation, structure and properties of metal–copolymer complexes of poly-4-vinylpyridine radiation-grafted onto polymer films

Turmanova, Sevdalina; Vassilev, Krassimir; Boneva, Stanka

doi:10.1016/j.reactfunctpolym.2007.11.015

Cited by 20 publications

(9 citation statements)

References 19 publications

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“…). Based on our previous studies [14] and literary data [10,19], the probable co-ordination structure of the compounds obtained is shown in Figures 1 and 2 Table 1. As can be seen, the vanadyl ions showed the highest affinity to co-ordination: 34.48 and 14.96 mg metal/g polymer carrier for LDPEgraft-P4VP (P = 74.5%) and PTFE-graft-P4VP (P = 13.4%), respectively.…”

Section: Resultsmentioning

confidence: 92%

“…The amount of the metal ions bonded to the nitrogen ligand increased with the increase of the grafting degree. The co-ordination structure of the metal complexes was analyzed using IR, Moessbauer spectroscopy and EPR in our earlier paper [14]. The content of hydrophilic groups in the grafted polymer-metal complexes stipulates their swelling in electrolytes and has strong effect on their specific electric conductivity.…”

Section: Resultsmentioning

confidence: 99%

“…Besides, the method of radiation grafting ensures purity of the copolymers obtained. The metal complexes of the nitrogen containing copolymers synthesized by the method described above were studied in the reaction of cyclohexene oxidation with tert-butylhydroperoxide [14]. The present paper reports for the preparation of the metal complexes of radiation grafted nitrogen containing copolymers.…”

Section: Introductionmentioning

confidence: 98%

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Complexes of heavy metals with nitrogen containing copolymers - electrochemical and physicomechanical properties

Turmanova¹,

Str²

2007

Express Polym. Lett.

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Absrtact. Metal complexes were synthesized on the basis of the copolymers of radiation grafted poly-4-vinylpyridine onto polyethene and polytetrafluoroethene. The formation of the complexes was carried out in solutions of the following salts: FeCl3·6H2O, CoCl2·6H2O, VOSO4·5H2O, Na2MoO4·2H2O and Na2WO4·2H2O. The introduction of metal ions depended on the degree of grafting of 4-vinylpyridine and it was found to be from 0.03 to 14.96 and from 0.11 to 34.48 mg metal ions per g of polymer carrier for polytetrafluoroethene and polyethene, respectively. The influence of the metal ion nature on the electrochemical characteristics of nitrogen-containing copolymers was studied. The specific electric resistance of the polymer metal complexes was found to depend on the nature of the metal ion and its content in the complex. The metal complexes obtained had lower electric resistance than the initial copolymers. This can be explained with the fact that the chelate agents (salts of metals with variable valence) have free ions and electron mobility which improve the electric conductivity of the materials obtained and have a good prospect in many fields as functional polymer. The tensile characteristics of the polymer complexes of heavy metals were also affected by the nature and contents of the ions introduced.

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Complexes of heavy metals with nitrogen containing copolymers - electrochemical and physicomechanical properties

Turmanova¹,

Str²

2007

Express Polym. Lett.

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“…The present paper is a continuation of the authors' research of the preparation and characterization of complexes of various polymeric carriers with metal ions [16][17][18][19]. It demonstrates an attempt to obtain complexes of glutathione with Mo (VI) salts in aqueous acidic solutions and with V(V), Cr(III), Mn(II), Cu(II), Fe(II), Co(II), Cd(II), and Th(IV) in aqueous-alcoholic solutions.…”

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confidence: 90%

Complexes of glutathione with heavy metals as catalysts for oxidation

Dimitrova

Turmanova

Vassilev

2009

Reac Kinet Mech Cat

Self Cite

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Research was carried out to determine the activity of complexes of tripeptideglutathione with heavy metals in the oxidation of cyclohexene with tert-butylhydroperoxide in toluene at 80°C. All the complexes were prepared by the interaction of metal ions and glutathione at room temperature in aqueous solutions. Only the complexes of Mo were obtained from acidic aqueous solution. The characteristics of these complexes were determined by means of FTIR and Mössbauer spectroscopies and EPR analysis. The products of the epoxidation and hydroxylation reactions were identified using GC analysis. The complexes of molybdenum and vanadium showed higher activity in the epoxidation reaction of cyclohexene compared to the other complexes, namely of Mn, Co, Cu, Cr, Fe, Cd and Th. The possible structures of the complexes are offered. The possible use of glutathione complexes as catalysts in the model reaction of oxidation is newly demonstrated.

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“…Nickel (II) complexes bearing N, O-chelate ligand activation for MMA polymerization yielded poly (methyl methacrylate) (PMMA) with rich syndiotacticity microstructure [4][5][6][7][8][9][10]. The chelating polymers find applications in bioinorganic industry [11], wastewater treatment [12,13], pollution control [14], hydrometallurgy [15], preconcentration [16], anionic polyelectrolyte hydrogels [17], cation-exchange resins [18] , showed potential applications in material science as conductive [19], luminescent [20], magnetic, porous, chiral or non-linear optical materials [21], catalytic [22][23][24][25],organic synthesis [26], polymer drug graft, recovery of trace metal ions [13] and antimicrobial activities [27,28].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Biological Activity of Polymer Nickel (Ii) Complex

Salah¹,

Elaasser²,

Osman³

et al. 2016

JAC

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I S S N 2 3 2 1 -8 0 7 x V o l u m e 1 2 N u m b e r 4 J o u r n a l o f A d v a n c e s i n C h e m i s t r y 4387 | P a g e c o u n c i l f o r I n n o v a t i v e R e s e a r c h A p r i l 2 0 1 6 w w w . c i r w o r l d . c o m (DTA and TGA). Conductivity measurement reveals the nonelectrolytic nature of the complex. This confirms that, the anion is coordinated to the metal ion. The IR reveal the metal ion is coordinated via the nitrogen atom of 4-VP. Nickel complex and polymer nickel complex have been tested invitro against number of tumor and number of microorganisms in order to assess their anti tumor and antimicrobial properties. The antimicrobial activity was observed by compounds VP-Ni and MMA-VP-Ni under the screening conditions. The activity against HCT-116 cells was detected for compound VP-Ni (with IC50 value 9.8±0.6 µg/ml), compared with reference standard (24.6±0.3 µg/ml) followed by MMA-VP-Ni (48.3±1.5). In conclusion, this study highlighted the synthesis of polymer nickel complex, and proved the promising biological activity of the synthesized compounds. SYNTHESIS, CHARACTERIZATION AND BIOLOGICAL ACTIVITY OF POLYMER NICKEL (II) COMPLEX

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Preparation, structure and properties of metal–copolymer complexes of poly-4-vinylpyridine radiation-grafted onto polymer films

Cited by 20 publications

References 19 publications

Complexes of heavy metals with nitrogen containing copolymers - electrochemical and physicomechanical properties

Complexes of heavy metals with nitrogen containing copolymers - electrochemical and physicomechanical properties

Complexes of glutathione with heavy metals as catalysts for oxidation

Synthesis, Characterization and Biological Activity of Polymer Nickel (Ii) Complex

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