Maghemite polymer nanocomposites with modulated magnetic properties

A. Millan; F. Palacio; A. Falqui; E. Snoeck; V. Serin; A. Bhattacharjee; V. Ksenofontov; P. Gütlich; I. Gilbert

doi:10.1016/j.actamat.2006.11.020

Maghemite polymer nanocomposites with modulated magnetic properties

A. Millan^*, F. Palacio, A. Falqui, E. Snoeck, V. Serin, A. Bhattacharjee, V. Ksenofontov, P. Gütlich, I. Gilbert

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

A method is presented for the production of maghemite polymer nanocomposites with modulated magnetic properties. Magnetic nanocomposites prepared using this method show regular variation in the magnetic blocking temperature from 2 K to 300 K, and variation in the saturation magnetization from 0 to 50 emu g^-1 (Fe₂O₃). The method is based on the in situ formation of maghemite nanoparticles in nitrogen-base polymer matrixes. The particle size can be varied regularly from 1.5 nm to 16 nm by changing the ratio of iron loading in the polymer and/or the Fe(II)/Fe(III) ratios. The particles are isolated and uniformly distributed within the matrix. The materials were characterized by electron microscopy, electron energy loss spectroscopy, Mössbauer spectroscopy, infrared spectroscopy, small angle X-ray scattering, wide angle X-ray scattering and magnetic measurements. The nanocomposites obtained are useful model material for the study of the magnetic behavior of magnetic nanoparticles, as well as for use in many industrial and biomedical applications.

Original language	English (US)
Pages (from-to)	2201-2209
Number of pages	9
Journal	Acta Materialia
Volume	55
Issue number	6
DOIs	https://doi.org/10.1016/j.actamat.2006.11.020
State	Published - Apr 2007
Externally published	Yes

Keywords

Maghemite
Magnetic properties
Nanocomposite
Nanoparticles

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Polymers and Plastics
Metals and Alloys

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10.1016/j.actamat.2006.11.020

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title = "Maghemite polymer nanocomposites with modulated magnetic properties",

abstract = "A method is presented for the production of maghemite polymer nanocomposites with modulated magnetic properties. Magnetic nanocomposites prepared using this method show regular variation in the magnetic blocking temperature from 2 K to 300 K, and variation in the saturation magnetization from 0 to 50 emu g-1 (Fe2O3). The method is based on the in situ formation of maghemite nanoparticles in nitrogen-base polymer matrixes. The particle size can be varied regularly from 1.5 nm to 16 nm by changing the ratio of iron loading in the polymer and/or the Fe(II)/Fe(III) ratios. The particles are isolated and uniformly distributed within the matrix. The materials were characterized by electron microscopy, electron energy loss spectroscopy, M{\"o}ssbauer spectroscopy, infrared spectroscopy, small angle X-ray scattering, wide angle X-ray scattering and magnetic measurements. The nanocomposites obtained are useful model material for the study of the magnetic behavior of magnetic nanoparticles, as well as for use in many industrial and biomedical applications.",

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author = "A. Millan and F. Palacio and A. Falqui and E. Snoeck and V. Serin and A. Bhattacharjee and V. Ksenofontov and P. G{\"u}tlich and I. Gilbert",

year = "2007",

month = apr,

doi = "10.1016/j.actamat.2006.11.020",

language = "English (US)",

volume = "55",

pages = "2201--2209",

journal = "Acta Materialia",

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TY - JOUR

T1 - Maghemite polymer nanocomposites with modulated magnetic properties

AU - Millan, A.

AU - Palacio, F.

AU - Falqui, A.

AU - Snoeck, E.

AU - Serin, V.

AU - Bhattacharjee, A.

AU - Ksenofontov, V.

AU - Gütlich, P.

AU - Gilbert, I.

PY - 2007/4

Y1 - 2007/4

N2 - A method is presented for the production of maghemite polymer nanocomposites with modulated magnetic properties. Magnetic nanocomposites prepared using this method show regular variation in the magnetic blocking temperature from 2 K to 300 K, and variation in the saturation magnetization from 0 to 50 emu g-1 (Fe2O3). The method is based on the in situ formation of maghemite nanoparticles in nitrogen-base polymer matrixes. The particle size can be varied regularly from 1.5 nm to 16 nm by changing the ratio of iron loading in the polymer and/or the Fe(II)/Fe(III) ratios. The particles are isolated and uniformly distributed within the matrix. The materials were characterized by electron microscopy, electron energy loss spectroscopy, Mössbauer spectroscopy, infrared spectroscopy, small angle X-ray scattering, wide angle X-ray scattering and magnetic measurements. The nanocomposites obtained are useful model material for the study of the magnetic behavior of magnetic nanoparticles, as well as for use in many industrial and biomedical applications.

AB - A method is presented for the production of maghemite polymer nanocomposites with modulated magnetic properties. Magnetic nanocomposites prepared using this method show regular variation in the magnetic blocking temperature from 2 K to 300 K, and variation in the saturation magnetization from 0 to 50 emu g-1 (Fe2O3). The method is based on the in situ formation of maghemite nanoparticles in nitrogen-base polymer matrixes. The particle size can be varied regularly from 1.5 nm to 16 nm by changing the ratio of iron loading in the polymer and/or the Fe(II)/Fe(III) ratios. The particles are isolated and uniformly distributed within the matrix. The materials were characterized by electron microscopy, electron energy loss spectroscopy, Mössbauer spectroscopy, infrared spectroscopy, small angle X-ray scattering, wide angle X-ray scattering and magnetic measurements. The nanocomposites obtained are useful model material for the study of the magnetic behavior of magnetic nanoparticles, as well as for use in many industrial and biomedical applications.

KW - Maghemite

KW - Magnetic properties

KW - Nanocomposite

KW - Nanoparticles

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U2 - 10.1016/j.actamat.2006.11.020

DO - 10.1016/j.actamat.2006.11.020

M3 - Article

AN - SCOPUS:33847279775

SN - 1359-6454

VL - 55

SP - 2201

EP - 2209

JO - Acta Materialia

JF - Acta Materialia

IS - 6

ER -

Maghemite polymer nanocomposites with modulated magnetic properties

Abstract

Keywords

ASJC Scopus subject areas

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