Abstract
New polymer nanocomposites containing iron oxide nanoparticles stabilized with a biocompatible copolymer of 1-vinyl-1,2,4-triazole with N-vinylpyrrolidone were produced. The synthesis was conducted using the method of chemical reduction of iron ions with hydrazine hydrate in an aqueous medium in the presence of a polymer matrix. The ESR spectroscopy data showed that the core—shell type nanoparticles were obtained. The core generally consistsed of zero-valence iron coated with an oxide shell. According to the data of transmission electron microscopy, the obtained polymer nanocomposites consisted of nanoparticles of mainly spherical shape with a diameter from 1 to 14 nm. Aggregates formed from individual stabilized nanoparticles of up to 75 nm in size (in most cases) were also observed. These aggregated particles were found to self-organize and form branched chains. Nanocomposites were characterized by a different particle-size distribution, which was determined by the initial ratio of the copolymer and the precursor of iron nanoparticles.
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On the occasion of the anniversary of A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp. 2308–2313, December, 2017.
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Pozdnyakov, A.S., Ivanova, A.A., Emel’yanov, A.I. et al. Fe-containing nanocomposites based on a biocompatible copolymer 1-vinyl-1,2,4-triazole with N-vinylpyrrolidone. Russ Chem Bull 66, 2308–2313 (2017). https://doi.org/10.1007/s11172-017-2020-4
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DOI: https://doi.org/10.1007/s11172-017-2020-4