Abstract
The stabilizing effect exerted on silver particles in aqueous-organic media by a copolymer consisting of blocks of polyvinyl acetate prepared by controlled reversible addition–fragmentation chain-transfer radical polymerization and of poly-N-vinylpyrrolidone was studied. The micelles formed by the block copolymer can act as reactors for the synthesis of silver particles by reduction of the salt preliminary introduced into the micelles. The sizes of micelles based on silver sol particles and of metal particles after removing the polymer on a graphite support were determined. Conditions were found for preparing spherical silver particles no more than 100 nm in diameter with uniform particle size. The composites based on these systems and formed on the surface of thermally expanded graphite exhibit catalytic activity in oxidation of Pyrocatechol Violet dye.
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Translated from Zhurnal Prikladnoi Khimii, No. 10, pp. 1219–1237, October, 2022 https://doi.org/10.31857/S0044461822100036
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Kropacheva, O.I., Nikolaichikova, E.V., Zherebtsov, D.A. et al. Synthesis of Silver Particles in Micelles Stabilized by a Vinyl Acetate–N-Vinylpyrrolidone Block Copolymer. Russ J Appl Chem 95, 1533–1538 (2022). https://doi.org/10.1134/S1070427222100032
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DOI: https://doi.org/10.1134/S1070427222100032