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Poly(vinyl phosphonic acid) (PVPA)-BaFe12O19 Nanocomposite
Fatih Univ, Istanbul, Turkey .
Gebze Inst Technol, Izmit, Turkey .
Natl Metrol Inst, Gebze, Turkey .
KTH, School of Information and Communication Technology (ICT), Material Physics, Functional Materials, FNM.ORCID iD: 0000-0001-5678-5298
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2012 (English)In: Journal of Superconductivity and Novel Magnetism, ISSN 1557-1939, Vol. 25, no 4, 1185-1193 p.Article in journal (Refereed) Published
Abstract [en]

We present a method for the fabrication of PVPA/BaFe12O19 nanocomposite by in-situ polymerization of vinyl phosphonic acid, VPA in the presence of synthesized BaFe12O19 NPs. Nanoparticles and the nanocomposite were analyzed by XRD, FTIR, TGA, SEM, TEM, VSM, and conductivity techniques for structural and physicochemical characteristics. Nanoparticles, identified as BaFe12O19 from XRD analysis, were successfully coated with PVPA and the linkage was assessed to be via P-O bonds. Electron microscopy analysis revealed aggregation of BaFe12O19 particles and dominantly platelet morphology upon composite formation. TGA analysis revealed the composition of the nanocomposite as 65% BaFe12O19 and 35% polymer. Magnetic evaluation revealed that adsorption of PVPA anions during the preparation of the nanocomposite strongly influenced the magnetic properties resulting in much lower saturation magnetization values. DC conductivity measurements were used to calculate activation energy of PVPA/BaFe12O19 nanocomposite and it was obtained as 0.37 eV.

Place, publisher, year, edition, pages
2012. Vol. 25, no 4, 1185-1193 p.
Keyword [en]
Magnetic nanomaterials, Nanocomposites, Conductivity, Dielectric properties
National Category
Condensed Matter Physics
URN: urn:nbn:se:kth:diva-98951DOI: 10.1007/s10948-011-1396-xISI: 000305222200064ScopusID: 2-s2.0-84864598329OAI: diva2:540540

QC 20120710

Available from: 2012-07-10 Created: 2012-07-05 Last updated: 2012-09-12Bibliographically approved

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Toprak, Muhammet S.
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Functional Materials, FNM
Condensed Matter Physics

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