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Synthesis and characterization of NiO nanoparticles and their PMMA nanocomposites obtained by in situ bulk polymerization
- García-Cerda, L. A., Romo-Mendoza, L. E., Quevedo-López, M. A.
- Journal of materials science 2009 v.44 no.17 pp. 4553-4556
- X-ray diffraction, X-ray photoelectron spectroscopy, nanocomposites, nanoparticles, nickel oxide, polymerization, polymethylmethacrylate, temperature, thermogravimetry, transmission electron microscopy
- A nickel oxide (NiO) precursor was prepared using Pechini method. The NiO nanoparticles were prepared by calcination of NiO precursor at temperatures ranging from 300 to 700 °C. The resulting NiO nanoparticles were characterized by X-ray photoelectron spectroscopy, X-ray diffraction (XRD), and transmission electron microscopy. To hamper NiO nanoparticles aggregation, the NiO nanoparticles surface was treated using (3-mercaptopropyl)-trimethoxysilane as a coupling agent. Next, nanocomposites of poly(methyl methacrylate) and modified NiO nanoparticles were successfully prepared by in situ bulk polymerization with 2,2′-azobis(isobutylonitrile) as initiator. The obtained nanocomposites were characterized by XRD and thermogravimetric analysis.