Effect of Characteristics of Polymer Microgel Catalysts on the Efficiency of Interfacial Catalysis

M. V. Anakhov; Анахов М. В.; R. A. Gumerov; Гумеров Р. А.; I. I. Potemkin; Потемкин И. И.

doi:10.31857/S2308114723700218

Effect of Characteristics of Polymer Microgel Catalysts on the Efficiency of Interfacial Catalysis

Autores: Anakhov M.V.¹, Gumerov R.A.¹, Potemkin I.I.¹
Afiliações:
1. Faculty of Physics, Moscow State University
Edição: Volume 65, Nº 1 (2023)
Páginas: 110-121
Seção: Articles
URL: https://cardiosomatics.ru/2308-1147/article/view/674811
DOI: https://doi.org/10.31857/S2308114723700218
EDN: https://elibrary.ru/HOITKS
ID: 674811

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Resumo

Effect of the architecture and composition of a hydrophilic microgel catalyst on the rate of interfacial catalytic reaction proceeding at the water/oil interface and involving reagents dissolved in opposite phases is studied using dissipative particle dynamics simulations. It is shown that a decrease in the crosslinking density of the microgel, the existence of a cavity in its architecture, an increase in its size, the incorporation the hydrophobic comonomers into a macromolecule, and a rise in the degree of solubility of a network macromolecule in oil contribute to acceleration of the catalytic reaction due to increase of the area of the water–oil–microgel contact and growth of the number of contacts between reagents and catalytic groups. However, in the case of amphiphilic microgels and microgels soluble in both phases, the acceleration of the reaction is restrained by a low rate of reagents diffusion and a rapid reduction in the concentration of reagents in the vicinity of catalytic sites.

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