6533b82dfe1ef96bd1291ccc

RESEARCH PRODUCT

Maghemite polymer nanocomposites with modulated magnetic properties

ÁNgel MillánEtienne SnoeckIan H. GilbertPhilipp GütlichVadim KsenofontovV. SerinAshis BhattacharjeeAndrea FalquiFernando Palacio

subject

chemistry.chemical_classificationIn situNanocompositeMaterials sciencePolymers and PlasticsPolymer nanocompositeMetals and AlloysMaghemiteNanoparticlePolymerengineering.materialElectronic Optical and Magnetic MaterialsNuclear magnetic resonancechemistryChemical engineeringCeramics and CompositesengineeringParticle size

description

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 mate

yearjournalcountryeditionlanguage
2007-04-01Acta Materialia
https://doi.org/10.1016/j.actamat.2006.11.020