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Preparation of polyboronphenylsiloxanes by mechanochemical activation

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Abstract

Linear polyboronphenylsiloxanes containing fluorine atom at silicon and acetylacetonate group at boron have been synthesized by mechanochemical activation. Mechanochemical activation of polyphenylsilsesquioxane and boron difluoride acetylacetonate taken in molar ratio 1 : 1 was shown to lead to the formation of polyboronphenylsiloxane with the given Si/B ratio. The products are characterized by gel chromatography, IR, NMR spectroscopy, elemental analysis, and X-ray phase analysis. The increase of the starting ratio Si/B enhances side processes and formation of polydisperse products with the Si/B ratio different from the desired one. The mechanism of the reaction is suggested.

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Authors and Affiliations

  1. Far Eastern Federal University, ul. Oktyabr’skaya 27, Vladivostok, 690900, Russia

    A. A. Kapustina, N. P. Shapkin & V. V. Libanov

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  1. A. A. Kapustina
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  2. N. P. Shapkin
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  3. V. V. Libanov
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Correspondence to A. A. Kapustina.

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Original Russian Text © A.A. Kapustina, N.P. Shapkin, V.V. Libanov, 2014, published in Zhurnal Obshchei Khimii, 2014, Vol. 84, No. 7, pp. 1124–1128.

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Kapustina, A.A., Shapkin, N.P. & Libanov, V.V. Preparation of polyboronphenylsiloxanes by mechanochemical activation. Russ J Gen Chem 84, 1320–1324 (2014). https://doi.org/10.1134/S1070363214070123

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  • DOI: https://doi.org/10.1134/S1070363214070123

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