Synthesis, characterization, and catalytic activity of 4 mol % <i>N</i>,<i>N</i>′‐methylene bisacrylamide crosslinked poly(acrylic acid)–metal complexes

John, Magi; Jose, Jincy; Mathew, Beena

doi:10.1002/app.13663

Cited by 7 publications

(4 citation statements)

References 20 publications

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“…The electronic spectrum of UT–Mn(II) exhibits three absorption bands at 15 860, 19 620, and 22 340/cm, which are assigned to 4 T 1g ← 6 A 1g , 4 T 2g ← 6 A 1g , and 4 E g ← 6 A 1g transitions, respectively, suggesting the octahedral geometry. 10 Dq and B were 4149.0 and 829.8/cm, respectively, whereas the β and β ˚ values were 0.86 and 0.13, respectively.…”

Section: Resultsmentioning

confidence: 99%

Adsorption properties of thermally stable and biologically active polyurea: its synthesis and spectral aspects

Hasnain

Zulfequar

Nishat

2011

Polymers for Advanced Techs

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Novel polymer metal complexes were prepared by the condensation polymerization of a polymeric ligand with transition metal ions of Mn(II), Co(II), Ni(II), Cu(II) and Zn(II). The polymeric ligand was prepared by the addition polymerization of urea with toluene 2,4‐diisocyanate in 1:1 molar ratio. The polymeric ligand and its polymer metal complexes were characterized by elemental analysis, Fourier transform infrared spectroscopy, 13C‐NMR, and1H‐NMR (nuclear magnetic resonance). The geometry was determined by electronic spectra and magnetic moment measurement. Thermogravimetric analysis (TGA) was utilized to find out the degradation process of the polyurea ligand and the polymer metal complexes. The TGA data revealed that all the metal‐containing polyureas are much more thermally stable than the corresponding polyurea ligand. The surface morphology of the polyurea ligand and cobalt(II)‐containing polyureas was determined by scanning electron micrographs. The antibacterial and antifungal activities of all the synthesized polymers were investigated against Staphylococcus aureus, Escherichia coli, and Bacillus subtilis (bacteria) and Aspergillus niger, Candida albicans, and Aspergillus flavus (fungi). These compounds show remarkably good biocidal activities, which were enhanced after complexation with the metal. Batch adsorption studies of the ligand were carried out for malachite green dye, and the polyurea ligand was found to be a good adsorbent for this dye. Copyright © 2011 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

Adsorption properties of thermally stable and biologically active polyurea: its synthesis and spectral aspects

Hasnain

Zulfequar

Nishat

2011

Polymers for Advanced Techs

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“…Three bands at 11,220, 21,725, and 27,765 cm −1 related to the 4 T 1 g(G)← 6 A 1 g(F) (ν 1 ), 4 T 2 g(G) ← 6 A 1 g(F) (ν 2 ), and 4 Eg(G) ← 6 A 1 g(F) (ν 3 ). These transitions predicted for an octahedral geometry 33. The previous data were used to calculate Crystal field parameter (Dq), Racah parameter (B), Nephelauxetic effect (β), and Covalancy parameter (β 0 ).…”

Section: Resultsmentioning

confidence: 99%

Synthesis, characterization, and preliminary antimicrobial evaluation of bisphenol‐A formaldehyde resin coordinated with transition metal complexes of ethylenediamine

Nishat

Asma

Manisha

2010

J of Applied Polymer Sci

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Coordination polymers containing bisphenol-A, formaldehyde, and transition metal complexes of ethylenediamine [M(en) 2 ] were synthesized by the reaction of bisphenol-A, formaldehyde, and M(en) 2 complex in alkaline medium, using M for Fe þ3 , Co þ2, Ni þ2 , Cu þ2 , and Zn þ2 . The materials were characterized by elemental analysis, FTIR, UV-Vis, 1 H-NMR spectra, TGA, and magnetic susceptibility measurement. The geometry of the central metal ions was determined by electronic spectral studies and magnetic moment measurement. The MAN and CAN bonds were confirmed by the IR spectra of the polychelates. The 1 H-NMR spectra of the chelating resins confirmed polycondensation with well-defined peaks for bridging methylene functions. Complexation studies with transition metal ions revealed effective coordination of the bisphenol-A formaldehyde resin. The antimicrobial activities of these chelated resins were screened against E. coli, S. dysantrea (bacteria), and C. albicans, A. niger (fungi) by using agar well diffusion method. All the polymeric chelates show promising antimicrobial activities.

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“…Polymeric metal complexes (PMC) are currently attracting considerable attention for a variety of applications, including development in nuclear chemistry, organic synthesis, wastewater treatment [1][2][3][4][5][6]. In particular, some polymeric transition metal complexes have shown unique properties in free radical polymerizations because of the specificity induced by the polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Polystyrene copper(II) complex containing azacrown ether functional groups as catalyst for room-temperature polymerization of MMA

et al. 2005

Journal of Molecular Catalysis A: Chemical

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Synthesis, characterization, and catalytic activity of 4 mol % N,N′‐methylene bisacrylamide crosslinked poly(acrylic acid)–metal complexes

Cited by 7 publications

References 20 publications

Adsorption properties of thermally stable and biologically active polyurea: its synthesis and spectral aspects

Adsorption properties of thermally stable and biologically active polyurea: its synthesis and spectral aspects

Synthesis, characterization, and preliminary antimicrobial evaluation of bisphenol‐A formaldehyde resin coordinated with transition metal complexes of ethylenediamine

Polystyrene copper(II) complex containing azacrown ether functional groups as catalyst for room-temperature polymerization of MMA

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