Effect of the polymeric matrix on the structural and magnetic properties of hematite/polymer composites

Angela Longo; Xiao Lei Wang; Antonio Ruotolo; Antonio Peluso; Gianfranco Carotenuto; Rolf Lortz

doi:10.1007/s11051-012-1314-6

Effect of the polymeric matrix on the structural and magnetic properties of hematite/polymer composites

Angela Longo, Xiao Lei Wang, Antonio Ruotolo, Antonio Peluso, Gianfranco Carotenuto, Rolf Lortz

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

9 Citations (Scopus)

Abstract

The magnetic properties of hematite (α-Fe₂O₃) nanoparticles synthesized by in situ thermal decomposition of an iron-mercaptide precursor in polymeric matrices are studied. In Polystyrene, nanoparticles with average size ∼20 nm can be produced that show ferromagnetic behavior with no Morin transition for temperatures as low as 10 K. Poly (9-vinylcarbazole)- based nanocomposites, produced by the same synthesis process, show a different magnetic behavior with a clear Morin transition. The effect of the polymeric matrix on the structural and magnetic properties of dispersed hematite nanoparticles is discussed. It is concluded that, in heavily viscous medium, the ability to control the particle growth and distribution is compromised. © Springer Science+Business Media Dordrecht 2012.

Original language	English
Article number	1314
Journal	Journal of Nanoparticle Research
Volume	14
Issue number	12
DOIs	https://doi.org/10.1007/s11051-012-1314-6
Publication status	Published - 2012

Research Keywords

Fine-particle systems
Hematite
Nanoparticles in polymers

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title = "Effect of the polymeric matrix on the structural and magnetic properties of hematite/polymer composites",

abstract = "The magnetic properties of hematite (α-Fe2O3) nanoparticles synthesized by in situ thermal decomposition of an iron-mercaptide precursor in polymeric matrices are studied. In Polystyrene, nanoparticles with average size ∼20 nm can be produced that show ferromagnetic behavior with no Morin transition for temperatures as low as 10 K. Poly (9-vinylcarbazole)- based nanocomposites, produced by the same synthesis process, show a different magnetic behavior with a clear Morin transition. The effect of the polymeric matrix on the structural and magnetic properties of dispersed hematite nanoparticles is discussed. It is concluded that, in heavily viscous medium, the ability to control the particle growth and distribution is compromised. {\textcopyright} Springer Science+Business Media Dordrecht 2012.",

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doi = "10.1007/s11051-012-1314-6",

language = "English",

volume = "14",

journal = "Journal of Nanoparticle Research",

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TY - JOUR

T1 - Effect of the polymeric matrix on the structural and magnetic properties of hematite/polymer composites

AU - Longo, Angela

AU - Wang, Xiao Lei

AU - Ruotolo, Antonio

AU - Peluso, Antonio

AU - Carotenuto, Gianfranco

AU - Lortz, Rolf

PY - 2012

Y1 - 2012

N2 - The magnetic properties of hematite (α-Fe2O3) nanoparticles synthesized by in situ thermal decomposition of an iron-mercaptide precursor in polymeric matrices are studied. In Polystyrene, nanoparticles with average size ∼20 nm can be produced that show ferromagnetic behavior with no Morin transition for temperatures as low as 10 K. Poly (9-vinylcarbazole)- based nanocomposites, produced by the same synthesis process, show a different magnetic behavior with a clear Morin transition. The effect of the polymeric matrix on the structural and magnetic properties of dispersed hematite nanoparticles is discussed. It is concluded that, in heavily viscous medium, the ability to control the particle growth and distribution is compromised. © Springer Science+Business Media Dordrecht 2012.

AB - The magnetic properties of hematite (α-Fe2O3) nanoparticles synthesized by in situ thermal decomposition of an iron-mercaptide precursor in polymeric matrices are studied. In Polystyrene, nanoparticles with average size ∼20 nm can be produced that show ferromagnetic behavior with no Morin transition for temperatures as low as 10 K. Poly (9-vinylcarbazole)- based nanocomposites, produced by the same synthesis process, show a different magnetic behavior with a clear Morin transition. The effect of the polymeric matrix on the structural and magnetic properties of dispersed hematite nanoparticles is discussed. It is concluded that, in heavily viscous medium, the ability to control the particle growth and distribution is compromised. © Springer Science+Business Media Dordrecht 2012.

KW - Fine-particle systems

KW - Hematite

KW - Nanoparticles in polymers

UR - http://www.scopus.com/inward/record.url?scp=84869886462&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84869886462&origin=recordpage

U2 - 10.1007/s11051-012-1314-6

DO - 10.1007/s11051-012-1314-6

M3 - RGC 21 - Publication in refereed journal

SN - 1388-0764

VL - 14

JO - Journal of Nanoparticle Research

JF - Journal of Nanoparticle Research

IS - 12

M1 - 1314

ER -

Effect of the polymeric matrix on the structural and magnetic properties of hematite/polymer composites

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