Magnetic properties of acrylic UV-cured films containing magnetite nanoparticles (Articolo in rivista)

Type
Label
  • Magnetic properties of acrylic UV-cured films containing magnetite nanoparticles (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1557/opl.2011.481 (literal)
Alternative label
  • Chiolerio A., Allia P., Tiberto P. , Suber L., Marchegiani G., Sangermano M. (2011)
    Magnetic properties of acrylic UV-cured films containing magnetite nanoparticles
    in MRS proceedings
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Chiolerio A., Allia P., Tiberto P. , Suber L., Marchegiani G., Sangermano M. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 1312 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • http://dx.doi.org/10.1557/opl.2011.481 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Physics Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, IT-10129, Torino, Italy Materials Science and Chemical Engineering Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, IT-10129, Torino, Italy Electromagnetism Division, INRiM, Strada delle Cacce 91 IT-10135, Torino, Italy Istituto di Struttura della Materia, CNR-Area della ricerca di Roma 1, Via Salaria km 29.500 IT-00015, Monterotondo Stazione, Italy (literal)
Titolo
  • Magnetic properties of acrylic UV-cured films containing magnetite nanoparticles (literal)
Abstract
  • Acrylic based films containing thermo-chemically synthesized magnetite nanoparticles (NPs) were prepared by UV-curing. A stable dispersion of Fe3O4 NPs in n-hexane was added to polyethylene glycol diacrylate (PEGDA) oligomer or to hexanediol diacrylate (HDDA) oligomer, producing a blend whose viscosity matches the processing requirements for inkjet printing technology. Morphologic characterization is provided by means of Field Effect SEM on a representative nanocomposite section. By real-time FT-IR analysis it was shown that Fe3O4 NPs are able to initiate radical chain-grown polymerization under UV light, for what concerns the HDDA matrix. Tight cross-linked transparent polymeric films were obtained after 1 minute of UV irradiation. The magnetic properties of the produced films were studied by means of an Alternating-Gradient Force Magnetometer (AGFM) in the temperature range 10 – 300 K and up to 18 kOe. The isothermal magnetization curves of both HDDA and PEGDA -based nanocomposites showed that these hybrid systems must be described as interacting superparamagnets (ISP) characterized by inter-particle magnetic interactions dominating over intra-particle effects. (literal)
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