6533b862fe1ef96bd12c652b
RESEARCH PRODUCT
One step grafting of monomethoxy poly(ethylenglycol) during synthesis of maghemite nanoparticles in aqueous medium
Denis ChaumontClaire-hélène BrachaisLing HuJean-pierre CouvercelleDiana Hachsubject
Thermogravimetric analysisMaterials scienceAnalytical chemistryInfrared spectroscopyNanoparticleMaghemitemacromolecular substances02 engineering and technologyengineering.material010402 general chemistry01 natural scienceschemistry.chemical_compoundsymbols.namesakeColloid and Surface ChemistryZeta potentialaqueous mediumFourier transform infrared spectroscopyComputingMilieux_MISCELLANEOUShybridstechnology industry and agriculturemonomethoxy poly(ethylene glycol)021001 nanoscience & nanotechnologygrafting0104 chemical sciences[ CHIM.POLY ] Chemical Sciences/Polymersmaghemite[CHIM.POLY]Chemical Sciences/Polymerschemistrysymbolsengineering0210 nano-technologyRaman spectroscopyEthylene glycolNuclear chemistrydescription
Abstract Grafting of silanated monomethoxy poly(ethylene glycol) (m-PEG) onto maghemite nanoparticles surface in aqueous medium through one step procedure was investigated. The major characteristic of this work is that the grafting of m-PEG was produced during the synthesis of maghemite nanoparticles. The maghemite nanoparticles were characterized by photon correlation spectroscopy (PCS), zeta potential measurement, X-ray diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM), Fourier transform infrared spectrometer (FTIR), and X-ray photoelectron spectroscopy (XPS). The spinel structure of maghemite nanoparticles was verified and successful grafting of m-PEG was evidenced. Thermogravimetric analysis (TGA) attested the presence of 15% (w/w) of m-PEG around the maghemite nanoparticles.
year | journal | country | edition | language |
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2008-08-03 |