Towards Controlling the Morphology of Cobalt Loaded Nanocomposites in Polyol Process with Polyethylene Glycol
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
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Towards Controlling the Morphology of Cobalt Loaded Nanocomposites in Polyol Process with Polyethylene Glycol
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| Автор |
Burmatova, A. E.
Khannanov, A. A. Zubaidullina, L. Emelianov, D. A. Mostovaya, O. A. Stoikov, I. I. Ulakhovich, N. A. Kutyreva, M. P. |
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| Тематика |
POLYOL PROCESS
POLYETHYLENE GLYCOL COBALT NANOCOMPOSITES BIOCOMPATIBILITY |
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| Описание |
The effect of Mn+/OHPEG molar ratio on the formation of cobalt loaded metal-polymer nanocomposites during a onepot two-component polyol process by polyethylene glycol with Mr = 4000 g·mol–1 (PEG) was studied.
Controlling the size and structure of Co/PEG composite particles allows maintaining their biocompatibility. Composites Co/PEG containing only cobalt oxides (CoO or Co3O4) and having dimensions above 5 nm are hemocompatible. The hemolytic activity of HC50 can reach 6.12 g·ml–1. Received: 22.11.23. Revised: 29.11.23. Accepted: 29.11.23. Available online: 07.12.23. The polyol process is one of the simple, efficient and productive methods for the synthesis of metal loaded polymer composites. Functional properties of metal-polymer nanocomposites are determined by chemical composition, size and morphology of their particles. Finding effective ways to control the nanoparticle's properties during the polyol process is a crucial task. The effect of molar ratio Mn+/OHPEG on the formation of cobalt loaded metal-polymer nanocomposites during a one-pot two-component polyol process by polyethylene glycol with Mr = 4000 g·mol–1 (PEG) was studied. The PEG-based polyol process and the formation of cobalt nanophase were studied at molar ratios νCo2+/νOH(PEG) = 1:1, 1:10, 1:100 and 1:500 using UVVis, diffuse reflectance IR and ATR FT-IR spectroscopy, nanoparticle tracking analysis (NTA), dynamic light scattering (DLS). It was found that PEG can act as a reducing agent and stabilizing matrix for the cobalt nanophase at a ratio higher than Mn+/OHPEG = 1:10. The composition and morphology of Co/PEG nanocomposites were determined by XRD and TEM methods. Two types of spheroid particles with average diameters of 88±55 nm / 8±4 nm and 12±3 nm / 3±1 nm, respectively, represent Co/PEG nanocomposites 1:500 and 1:100. Scaly structures with a diameter of 15±5 nm are formed at a molar ratio of νCo2+/νOH(PEG) = 1:10. An increase in the Co2+ content in the PEG-based polyol process leads to the immobilized cobalt nanophase Co3O4 (1:500), Co0/CoO (1:100), CoO (1:10) in PEG. Co/PEG nanocomposites are hemocompatible. The HC50 value depends on the composition and morphology of the nanoparticles. The study was supported by a grant from the Russian Science Foundation No. 22-73-10036. (https://rscf.ru/project/22-73-10036/). This study was supported by the Kazan Federal University Strategic Academic Leadership Program («PRIORITY-2030»). Microscopy studies were carried out at the Inter-disciplinary Centre of Analytical Microscopy of Kazan Fed-eral University. |
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| Дата |
2024-01-18T12:45:23Z
2024-01-18T12:45:23Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Towards Controlling the Morphology of Cobalt Loaded Nanocomposites in Polyol Process with Polyethylene Glycol / A. Burmatova, A. A. Khannanov, L. Zubaidullina, D. A. Emelianov, O. A. Mostovaya, I. I. Stoikov, N. A. Ulakhovich, M. P. Kutyreva // Chimica Techno Acta. — 2023. — Vol. 10, No. 4. — № 202310413.
2411-1414 http://elar.urfu.ru/handle/10995/129331 https://www.elibrary.ru/item.asp?id=60040555 10.15826/chimtech.2023.10.4.13 |
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| Язык |
en
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| Связанные ресурсы |
Chimica Techno Acta. 2023. Vol. 10. № 4
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| Формат |
application/pdf
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| Издатель |
Уральский федеральный университет
Ural Federal University |
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