Temperature dependence of electrical conductivity in poly(maleic anhydride‐<i>alt</i>‐acrylic acid) and its transition metal complexes

Kavlak, Serap; Kodolbaş, Alp Osman; Can, Hatıce Kaplan; Güner, Ali̇; Rzaev, Zakır M. O.

doi:10.1002/adv.20012

Cited by 9 publications

(9 citation statements)

References 13 publications

(10 reference statements)

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“…In recent years, a special attention has been focused to explore the possibility of using polymer materials with their transition metal complexes as potent biomaterials and thermally stable materials due to their capability of exhibiting novel and unusual properties . Consequently, many polymers are now being synthesized, tested, and used not only for their macromolecular properties (the bulk properties of the polymers) but also for the properties of their chosen aromatic and aliphatic monomers with the functional groups containing nitrogen, sulfur, and oxygen (N, S, and O) donor atoms .…”

Section: Introductionmentioning

confidence: 99%

Thiazole‐Based Novel Terpolymer Ligand and Its Transition Metal Complexes: Thermal and Biological Studies

Ahamed¹,

Burkanudeen²

2013

Adv Polym Technol

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A new terpolymer ligand involving 2-amino-6-nitro-benzothiazole, melamine, and formaldehyde (BMF) has been synthesized in the presence of dimethyl formamide medium. The BMF ligand was characterized by elemental analysis and various spectral techniques like Fourier transform infrared (FTIR) spectroscopy, ultraviolet (UV)-visible spectroscopy, and 1 H & 13 C nuclear magnetic resonance (NMR) spectroscopy to elucidate the structure and properties of the terpolymer ligand. The BMF metal complexes were prepared using the BMF ligand with some transition metal ions, such as Cu 2+ , Ni 2+ , and Zn 2+ ions, in the presence of ethanol medium. The prepared complexes have been characterized by elemental analysis and FTIR, electronic, electron spin resonance, and 1 H & 13 C NMR spectral studies. The molecular weight of the BMF ligand and its metal complexes was determined by gel permeation chromatography. The surface features and crystalline behavior of the ligand and its complexes were analyzed by scanning electron microscope (SEM) and X-ray diffraction (XRD) methods. Thermal stability of the ligand and its metal complexes was studied by thermogravimetric analysis (TGA). Kinetic parameters such as activation energyand order of reaction (n), and thermodynamic parameters namely entropy change, free energy change, apparent entropy, and frequency factor were calculated using Freeman-Carroll, Sharp-Wentworth, and Phadnis-Deshpande (PD) methods. Thermal degradation model of the terpolymer ligand and its metal complexes was also proposed using the PD method. The antibacterial activities of the BMF ligand and its metal complexes were checked against chosen microbes such as Shigella sonnei, Escherichia coli, Klebsiella species, Staphylococcus aureus, Bacillus subtilis, and Salmonella typhimurium. C

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Section: Introductionmentioning

confidence: 99%

Thiazole‐Based Novel Terpolymer Ligand and Its Transition Metal Complexes: Thermal and Biological Studies

Ahamed¹,

Burkanudeen²

2013

Adv Polym Technol

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“…Some specific research has shown the usefulness of polychelates include complexes between poly (acrylic acid) and divalent, trivalent, and tetravalent metal ions and the stability constants for complex‐formation determined 20–22. The crystalline behavior and temperature‐dependent electrical conductivity23 of the Cu, Ni, and Cd polychelates formed with poly(maleic acid‐ alt ‐acrylic acid) at different pH values were determined by X‐ray diffraction spectroscopy 17, 24. Other polychelates have been prepared and studied including a terpolymer of ethyl methacrylate, N ‐phenylmaleimide, and itaconic acid, poly (EMA‐ co ‐PhMI‐ co ‐IA) complexed with Cu 2+ , Co 2+ , and Ni 2+ ions 25.…”

Section: Introductionmentioning

confidence: 99%

Bioengineering functional copolymers. XI. Copper(II)‐poly(N‐vinyl‐2‐pyrrolidone‐co‐N‐isopropylacrylamide) macrocomplexes

Rzayev

Denizli

2008

J of Applied Polymer Sci

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A series of poly(N-vinyl-2-pyrrolidone-co-N-isopropylacrylamide)s, poly(VP-co-NIPA) copolymers with different compositions were prepared by radical copolymerization of VP and NIPA in N,N 0 -dimethylformamide at 658C using 2,2 0 -azobisisobutyronitrile as initiator. Cu(II)-copolymer macrocomplexes were prepared by complexation of the copolymers with copper sulfate in aqueous solution at 408C. The structure and composition of the copolymers, and the formation of coordinated Cu(II)-complexes between amide VP units and Cu 2þ ions, were studied by FTIR spectroscopy, DSC and TGA-DTG in addition to electrical conductivity. Studies on the relationship between composition and thermal behavior showed that the values of T g and T d of the copolymers and their coordinated macrocomplexes increased with increasing VP content. The copolymers predominantly show amorphous structure while their Cu(II)-macrocomplexes show the presence of a crystalline phase. The conductive properties of the synthesized Cu(II)-poly(VP-co-NIPA) complexes are also discussed.

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“…The crystallinity degrees and temperature-dependent electrical conductivities of poly(MA-alt-AA)-Cu(II), poly(MA-alt-AA)-Ni(II), and poly(MA-alt-AA)-Cd(II) complexes were investigated by the X-ray powder diffraction method 16 and electrical conductivity measurements. 17 The aim of this work was to investigate the metal complexation and thermal stability of poly(MA-alt-AA) in the presence of copper(II), nickel(II), and cadmium(II) chlorides. At a distinct pH, the influence of these metal ions on the formation of the complexation was studied with gravimetric analysis and thermal analysis measurements.…”

Section: Introductionmentioning

confidence: 99%

Thermal properties of poly(maleic anhydride‐alt‐acrylic acid) in the presence of certain metal chlorides

Kavlak

Can

Rzaev

et al. 2006

J of Applied Polymer Sci

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ABSTRACT:Polychelates were synthesized by the addition of aqueous solutions of copper(II), cadmium(II), and nickel(II) chlorides to aqueous solutions of poly(maleic anhydride-alt-acrylic acid) [poly(MA-alt-AA)] in different pH media. The thermal properties of poly(MA-alt-AA) and its metal complexes were investigated with thermogravimetry and differential scanning calorimetry (DSC) measurements. The polychelates showed higher thermal stability than poly(MA-alt-AA). The thermogravimetry of the polymermetal complexes revealed variations of the thermal stability by complexation with metal ions. The relative thermal stabilities of the systems under investigation were as follows:The effects of pH on the complexation and gravimetric analysis of the polychelates were also studied.

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Temperature dependence of electrical conductivity in poly(maleic anhydride‐alt‐acrylic acid) and its transition metal complexes

Cited by 9 publications

References 13 publications

Thiazole‐Based Novel Terpolymer Ligand and Its Transition Metal Complexes: Thermal and Biological Studies

Thiazole‐Based Novel Terpolymer Ligand and Its Transition Metal Complexes: Thermal and Biological Studies

Bioengineering functional copolymers. XI. Copper(II)‐poly(N‐vinyl‐2‐pyrrolidone‐co‐N‐isopropylacrylamide) macrocomplexes

Thermal properties of poly(maleic anhydride‐alt‐acrylic acid) in the presence of certain metal chlorides

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