Mechanochemistry - a new powerful green approach to the direct synthesis of alkoxysilanesElectronic supplementary information (ESI) available. See DOI: 10.1039/c7gc03862c

The present work shows a new one-stage mechanochemical method for the direct synthesis of alkoxysilanes by silicon mechanoactivation followed by a reaction with an alcohol. Alkoxysilanes were obtained with nearly complete silicon and alcohol conversion. This method allows for a considerable simplifi...

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Main Authors Temnikov, Maxim N, Anisimov, Anton A, Zhemchugov, Pavel V, Kholodkov, Dmitry N, Goloveshkin, Alexander S, Naumkin, Alexander V, Chistovalov, Sergey M, Katsoulis, Dimitris, Muzafarov, Aziz M
Format Journal Article
Published 08.05.2018
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Abstract The present work shows a new one-stage mechanochemical method for the direct synthesis of alkoxysilanes by silicon mechanoactivation followed by a reaction with an alcohol. Alkoxysilanes were obtained with nearly complete silicon and alcohol conversion. This method allows for a considerable simplification of the traditional multistage process by eliminating three stages that include silicon and catalyst preparation, and adapts it to green chemistry requirements. Vibration milling removed the oxide film, and the mechanoactivation of the large silicon fraction (1000-2000 μm) occurs in the reactor working space. Abrasion of the reactor walls and grinding bodies made of brass results in a developed catalytic surface on silicon, as it has been proven by a set of physical analytical methods such as scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), powder X-ray diffraction (PXRD), and X-ray photoelectron spectroscopy (XPS). The present work shows a new one-stage mechanochemical method for the direct synthesis of alkoxysilanes.
AbstractList The present work shows a new one-stage mechanochemical method for the direct synthesis of alkoxysilanes by silicon mechanoactivation followed by a reaction with an alcohol. Alkoxysilanes were obtained with nearly complete silicon and alcohol conversion. This method allows for a considerable simplification of the traditional multistage process by eliminating three stages that include silicon and catalyst preparation, and adapts it to green chemistry requirements. Vibration milling removed the oxide film, and the mechanoactivation of the large silicon fraction (1000-2000 μm) occurs in the reactor working space. Abrasion of the reactor walls and grinding bodies made of brass results in a developed catalytic surface on silicon, as it has been proven by a set of physical analytical methods such as scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), powder X-ray diffraction (PXRD), and X-ray photoelectron spectroscopy (XPS). The present work shows a new one-stage mechanochemical method for the direct synthesis of alkoxysilanes.
Author Muzafarov, Aziz M
Katsoulis, Dimitris
Kholodkov, Dmitry N
Naumkin, Alexander V
Goloveshkin, Alexander S
Zhemchugov, Pavel V
Temnikov, Maxim N
Anisimov, Anton A
Chistovalov, Sergey M
AuthorAffiliation A.N. Nesmeyanov Institute of Organoelement Compounds
N.S. Enikolopov Institute of Synthetic Polymeric Materials
Russian Academy of Sciences (ISPM RAS)
Russian Academy of Sciences (INEOS RAS)
Dow Corning Corporation. A wholly owned subsidiary of The Dow Chemical Company
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