Evidence for magnetic interactions among magnetite nanoparticles dispersed in photoreticulated PEGDA-600 matrix (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Evidence for magnetic interactions among magnetite nanoparticles dispersed in photoreticulated PEGDA-600 matrix (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1007/s11051-011-0249-7 (literal)

Alternative label

• Allia P., Tiberto P., Coisson M., Chiolerio A., Celegato F., Vinai F., Sangermano M., Suber L., Marchegiani G. (2011)
  Evidence for magnetic interactions among magnetite nanoparticles dispersed in photoreticulated PEGDA-600 matrix
  in Journal of nanoparticle research
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Allia P., Tiberto P., Coisson M., Chiolerio A., Celegato F., Vinai F., Sangermano M., Suber L., Marchegiani G. (literal)

Pagina inizio

• 5615 (literal)

Pagina fine

• 5626 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 13 (literal)

Rivista

• Journal of nanoparticle research (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• http://dx.doi.org/10.1007/s11051-011-0249-7 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Politecnico di Torino DISMIC, Corso Duca degli Abruzzi 24, 10125 Torino Italia INRIM, Electromagnetism, Strada delle Cacce 91, 10135 Torino Italia CNR-ISM, Area della Ricerca di Roma 1, P.O. Box 10, 00015 Monterotondo Italia (literal)

Titolo

• Evidence for magnetic interactions among magnetite nanoparticles dispersed in photoreticulated PEGDA-600 matrix (literal)

Abstract

• Magnetite nanoparticles having mean diameter of about 8 nm have been prepared by a thermo-chemical route. Different amounts (5 and 10% wt) of a stable dispersion of magnetite nanoparticles in n-hexane were added to polyethylene glycol diacrylate (PEGDA-600) oligomer containing 2% wt of radicalic photoinitiator. The homogenized mixture was poured on a silica glass substrate and the resulting film was photoreticulated in N2 atmosphere using a UV lamp. As a result, a polymer-based magnetic nanocomposite was obtained, where the magnetic nanoparticles are dispersed in the diamagnetic matrix, as checked by SEM. Morphology, composition, and size of as-prepared nanoparticles were checked by SEM and X-ray diffraction. The magnetic properties of magnetite nanoparticles prior to and after inclusion in the polymeric matrix have been studied by means of an alternating-gradient magnetometer (T interval: 10–300 K, HMAX: 18 kOe). FC-ZFC curves were obtained in the same temperature interval. The results show that the nanocomposites cannot be simply described as containing superparamagnetic particles undergoing an anisotropy-driven blocking and that collective magnetic interactions play a non-negligible role. Low-temperature hysteretic properties indicate that the polymeric matrix affects the effective anisotropy of magnetite nanoparticles. Dispersion of magnetite NPs in PEGDA has non-trivial consequences on their magnetic properties. (literal)

Prodotto di

• Nanostrutture metalliche e di ossidi (MD.P04.003.004) (Modulo)
• Institute of structure of matter (ISM) (Istituto)

Autore CNR

• LORENZA SUBER (Persona)
• Giada Marchegiani (Unità di personale esterno)

Incoming links:

Autore CNR di

• LORENZA SUBER (Persona)
• Giada Marchegiani (Unità di personale esterno)

Prodotto

• Institute of structure of matter (ISM) (Istituto)
• Nanostrutture metalliche e di ossidi (MD.P04.003.004) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of nanoparticle research (Rivista)