Metal-polymer nanocomposites based on polydiphenylamine and cobalt nanoparticles
| Autor: | G. P. Karpacheva, Mikhail N. Efimov, Petr A. Chernavskii, E. L. Dzidziguri, S. Zh. Ozkan, Galina N. Bondarenko |
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| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
Nanocomposite Materials science Polymer nanocomposite General Engineering Diphenylamine chemistry.chemical_element Nanoparticle Nanotechnology Polymer Condensed Matter Physics Metal chemistry.chemical_compound chemistry Chemical engineering Transmission electron microscopy visual_art visual_art.visual_art_medium General Materials Science Cobalt |
| Zdroj: | Nanotechnologies in Russia. 8:452-460 |
| ISSN: | 1995-0799 1995-0780 |
| DOI: | 10.1134/s1995078013040113 |
| Popis: | It is shown for the first time that the infrared heating of polydiphenylamine in the presence of cobalt (II) acetate Co(CH3CO2)2 · 4H2O in an inert atmosphere at a sample temperature of T = 250−600°C leads to the formation of a metal-polymer nanocomposite in which Co nanoparticles are dispersed in a polymer matrix at the expense of condensation of diphenylamine crystalline oligomers with hydrogen release, promoting the reduction of Co2+ to Co0. The formation of Co nanoparticles is confirmed by X-ray phase analysis. According to data from transmission electron microscopy, Co nanoparticles have sizes of 2 < d < 8 nm. The investigation into the magnetic and thermal properties of Co/polydiphenylamine nanocomposite has shown that the nanocomposite obtained is superparamegnetic and thermostable. |
| Databáze: | OpenAIRE |
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