In Situ Polymerization and Characterization of Aniline and O-Anthranilic Acid Copolymer/Pyrogenic Silica Nanocomposites

Al-Hussaini, Ayman S.; Zoromba, M. Sh.; El-Ghamaz, N.A.

doi:10.1080/03602559.2013.763380

Cited by 28 publications

(22 citation statements)

References 39 publications

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“…It can be seen from these figures that both e r and e i decrease with increasing the frequency. This behavior is in a good agreement with the expected behavior of the organic and inorganic materials [48]. Both of e r and e i for PANAA (Z 0 ) copolymer are characterized by a maximum value at temperature around 355 K, which is independent of the test frequencies.…”

Section: Dielectrical Properties Of Panaa and Panaa-ni Compsoitessupporting

confidence: 80%

“…At this temperature, the peak could be explained by the response to the dehydration of the sample during the heating process [48,52]. This behavior was reported by Al-Hussaini et al for PANAA and PANAASilica nanocomposite [48]. Both of e r and e i values increase with increasing the temperature.…”

Section: Dielectrical Properties Of Panaa and Panaa-ni Compsoitessupporting

confidence: 50%

“…Both of e r and e i for PANAA (Z 0 ) copolymer are characterized by a maximum value at temperature around 355 K, which is independent of the test frequencies. At this temperature, the peak could be explained by the response to the dehydration of the sample during the heating process [48,52]. This behavior was reported by Al-Hussaini et al for PANAA and PANAASilica nanocomposite [48].…”

Section: Dielectrical Properties Of Panaa and Panaa-ni Compsoitesmentioning

confidence: 61%

“…Both of e r and e i values increase with increasing the temperature. The increase of e r and e i with increasing temperature behavior is observed for many organic [48,49,53] and inorganic compounds [54]. The AC conductivity (r ac ) of PANAA (Z 0 ) copolymer can be calculated from the following equation [48-51, 53, 55]:…”

Section: Dielectrical Properties Of Panaa and Panaa-ni Compsoitesmentioning

confidence: 99%

“…The dielectrical permittivity (e) of a material can be considered as a complex quantity and is given by [48]:…”

Section: Dielectrical Properties Of Panaa and Panaa-ni Compsoitesmentioning

confidence: 99%

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Effect of Doping with Nickel Ions on the Electrical Properties of Poly(aniline-co-o-anthranilic acid) and Doped Copolymer as Precursor of NiO Nanoparticles

Zoromba

El-Ghamaz

Alghool

2015

J Inorg Organomet Polym

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Poly(aniline-co-o-anthranilic acid) (PANAA) and its nickel composite (PANAA-Ni) are successfully prepared based on oxidative chemical polymerization via two comparative in situ and ex situ polymerization methods. PANAA copolymer contains aniline, and o-anthranilic acid moieties, were doped with different concentrations of nickel ions. The ratios of aniline, o-anthranilic acid, and nickel chloride were (1:1:0.5) and (1:1:1), respectively. The effect of nickel moiety on the properties of polyconjugated polymers, and their spectral characteristics (UVVis absorption spectra, FTIR, thermal stability) were recorded. TGA analysis confirmed that the poly(aniline-coo-anthranilic acid)/nickel (PANAA-Ni) composites, which were prepared by in situ or ex situ polymerization method, are more thermally stable than the pure PANAA copolymer. The XRD revealed that the pure and PANAA-Ni (prepared by ex situ polymerization method) is completely amorphous structure, while the PANAA-Ni composite (prepared by in situ polymerization method) is a mixture of crystalline and amorphous phases. The temperature dependence of dielectric constants (e r and e i ) as well as AC conductivity (r ac ) were investigated in the temperature range of 300-383 K and test frequency range of 0.1-100 kHz. All the tested samples showed semiconductor behavior. The values of thermal activation energies DE1 and DE2 for PANAA copolymer are calculated, and found to be in the range of 0.03-0.1 eV and 0.58-1.88 eV, respectively. We calculated DE1 and DE2 for PANAA-Ni composite, and we found their values in the range of 0.14-0.27 eV and 0.41-0.58 eV, respectively. Moreover, Nanocrystalline nickel oxide NiO powder was prepared by thermal decomposition route of (PANAA-Ni) composites, which was prepared by in situ polymerization method. The size of the obtained nickel oxide nanoparticle was determined by transmission electron microscope .

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Section: Dielectrical Properties Of Panaa and Panaa-ni Compsoitessupporting

confidence: 80%

Section: Dielectrical Properties Of Panaa and Panaa-ni Compsoitessupporting

confidence: 50%

Section: Dielectrical Properties Of Panaa and Panaa-ni Compsoitesmentioning

confidence: 61%

Section: Dielectrical Properties Of Panaa and Panaa-ni Compsoitesmentioning

confidence: 99%

“…The dielectrical permittivity (e) of a material can be considered as a complex quantity and is given by [48]:…”

Section: Dielectrical Properties Of Panaa and Panaa-ni Compsoitesmentioning

confidence: 99%

See 3 more Smart Citations

Effect of Doping with Nickel Ions on the Electrical Properties of Poly(aniline-co-o-anthranilic acid) and Doped Copolymer as Precursor of NiO Nanoparticles

Zoromba

El-Ghamaz

Alghool

2015

J Inorg Organomet Polym

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Terpolymers as precursors for CuO nanoparticles synthesis

Zoromba

Al-Hussaini

2014

J of Applied Polymer Sci

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This work describes the synthesis of terpolymers of aniline, diphenylamine, and o‐anthranilic acid (PANIDPAA) by 1 : 1 : 1 molar ratio of the respective monomers doped by different concentration of copper ions via in situ chemical terpolymerization. The results are justified by measuring spectral characteristics namely, UV‐vis absorption spectra, FTIR, and TGA. Calcining these PANIDPAA terpolymers doped by copper at temperatures in the range of 700°C led to the formation of CuO nanoparticles in the nanoscale by thermal decomposition in air directly. The stages of decompositions and the calcination temperature of the precursors have been determined from thermal analysis data sheet. The obtained CuO nanoparticles have been characterized by X‐ray diffraction and transmission electron microscope (TEM). TEM showed a particle size less than 40 nm. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 41150.

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New polymeric based materials: terpoly(aniline, diphenyl amine, and o-anthranilic acid) / kaolinite composites

Al-Hussaini

2016

Polym. Adv. Technol.

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Terpolymers of aniline, diphenyl amine and o‐anthranilic acid (PANIDPAA) / kaolinite clay composites were synthesized by 1:1:1 molar ratios of the respective monomers with different percentages of kaolinite clay particles via in situ chemical terpolymerization. The spectral characteristics upon incorporation of o‐anthranilic acid and diphenyl amine units into the polyaniline backbone in presence of kaolinite clay were investigated. The results were justified by measuring the UV–Vis absorption spectra, FT‐IR for PANIDPAA emeraldine base (EB), and PANIDPAA EB / kaolinite clay composite. Also, the thermal gravimetric analyses for the isolated terpolymer powder in the bulk in absence and in presence of kaolinite clay were carried out. Moreover, the morphology of the polymer clay composites system was studied by the scanning electron microscope micrographs at different magnifications. X‐ray diffraction was used to measure the nature of polymer and extent of crystallinity present in the neat terpolymer and terpolymer / kaolinite composite materials. Copyright © 2016 John Wiley & Sons, Ltd.

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In Situ Polymerization and Characterization of Aniline and O-Anthranilic Acid Copolymer/Pyrogenic Silica Nanocomposites

Cited by 28 publications

References 39 publications

Effect of Doping with Nickel Ions on the Electrical Properties of Poly(aniline-co-o-anthranilic acid) and Doped Copolymer as Precursor of NiO Nanoparticles

Effect of Doping with Nickel Ions on the Electrical Properties of Poly(aniline-co-o-anthranilic acid) and Doped Copolymer as Precursor of NiO Nanoparticles

Terpolymers as precursors for CuO nanoparticles synthesis

New polymeric based materials: terpoly(aniline, diphenyl amine, and o-anthranilic acid) / kaolinite composites

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