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Mechanochemical Synthesis of Metallophenylsiloxanes Based on Polyphenylsiloxane and Acetylacetonates of Rare Earth Metals

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Mechanochemical Synthesis of Metallophenylsiloxanes Based on Polyphenylsiloxane and Acetylacetonates of Rare Earth Metals

Vitaly Libanov 1,* Alevtina Kapustina 1 Ivan Kozhenenko 2 Vladimir Tkachev 3

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1
Laboratory of Mechanochemistry, Department of Chemistry and Materials, Institute of Science-Intensive Technologies and Advanced Materials, Far Eastern Federal University, Vladivostok 690922, Russia
2
Laboratory of Advanced Materials and Technologies, Institute of Science-Intensive Technologies and Advanced Materials, Far Eastern Federal University, Vladivostok 690922, Russia
3
Laboratory of Electron Microscopy and Image Processing, Department of General and Experimental Physics, Institute of Science-Intensive Technologies and Advanced Materials, Far Eastern Federal University, Vladivostok 690922, Russia
*
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Received: 08 March 2026 Revised: 14 April 2026 Accepted: 01 June 2026 Published: 24 June 2026

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© 2026 The authors. This is an open access article under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/).

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Sustain. Polym. Energy 2026, 4(2), 10009; DOI: 10.70322/spe.2026.10009
ABSTRACT: The present study pioneers the investigation of mechanochemical synthesis based on polyphenylsilsesquioxane and β-diketonate complexes of scandium, yttrium, and lanthanum. It has been demonstrated that the degree of metal incorporation into the polymer chain increases with the growth of the ionic radius and with the decrease in the stability of the initial acetylacetonate complex. The resulting polymers exhibit high thermal stability, comparable to that of the parent organosilicon polymer. Moreover, owing to their developed surface area and light-transforming properties, the synthesized compounds hold promise for applications in catalysis, production of electronic materials, and fabrication of nanoelectronic components.
Keywords: Mechanochemistry; Siloxane; Rare-earth elements; Metal-containing polymers; Polyphenylsiloxane; β-diketonates

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