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Synthesis and characterization of poly(3-thiophenyl acetic acid) (P3TAA)-BaFe12O19 nanocomposite
KTH, Skolan för informations- och kommunikationsteknik (ICT), Materialfysik, Funktionella material, FNM.ORCID-id: 0000-0001-5678-5298
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2011 (Engelska)Ingår i: Polyhedron, ISSN 0277-5387, E-ISSN 1873-3719, Vol. 30, nr 7, s. 1349-1359Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We have presented a method for the fabrication of poly(3-thiophenyl acetic acid) (P3TAA)-BaFe12O19 nanocomposites by the in situ polymerization of P3TAA in the presence of synthesized BaFe12O19 nanoparticles. The nanoparticles and the nanocomposite were analyzed by XRD, FTIR, TGA, TEM, VSM and conductivity techniques for structural and physicochemical characteristics. Crystallographic analysis revealed the phase as hexaferrite and X-ray line profile fitting yielded a crystallite size of 32 nm. The particles, observed by TEM, exhibit irregular shapes and sizes between 100 and 500 nm, revealing polycrystalline character when compared with the crystallite size from XRD. FTIR and TGA analysis results show that P3TAA is conjugated to the particle surface via a carboxylate group and that the composite has a polymer content of similar to 10%. Magnetic hysteresis curves do not saturate at high fields, which is a characteristic feature of fine particle systems with grain sizes smaller than 1 mu m. Conductivity measurements showed a semiconductor character of the nanocomposite.

Ort, förlag, år, upplaga, sidor
2011. Vol. 30, nr 7, s. 1349-1359
Nyckelord [en]
Nanocomposite, Hexaferrite, Electrical properties, Polythiophene acetic acid, Magnetization
Nationell ämneskategori
Kemi
Identifikatorer
URN: urn:nbn:se:kth:diva-34354DOI: 10.1016/j.poly.2011.02.044ISI: 000290820500022Scopus ID: 2-s2.0-79953860689OAI: oai:DiVA.org:kth-34354DiVA, id: diva2:432549
Forskningsfinansiär
Knut och Alice Wallenbergs Stiftelse, UAW2004.0224
Anmärkning
QC 20110804Tillgänglig från: 2011-08-04 Skapad: 2011-06-07 Senast uppdaterad: 2017-12-08Bibliografiskt granskad

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