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Metallation of poly(1-trimethylsilyl-1-prop-1-yne) and poly(vinyltrimethylsilane) with superbases

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Abstract

The pathway and degree of metallation of polymers were studied depending on the the conditions (temperature, concentration, nature, and component ratio) of metallation of poly(1-trimethylsilylprop-1-yne) (PTMSP) and poly(vinyltrimethylsilane) (PVTMS) by superbases, viz., BunLi and BusLi, in combination with potassium tert-pentyl oxide (PetOK). For the BunLi—PetOK system (1 : 3), the yield of modified PTMSP reached 90%. In the case of PTMSP, only the Me groups at the double bonds and at the Si atoms undergo metallation, whereas only the Me groups at the Si atoms are metallated in PVTMS. The kinetics of metallation with the BunLi—PetOK system was studied.

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Authors and Affiliations

  1. Russian Academy of Sciences, A. V. Topchiev Institute of Petrochemical Synthesis, 29 Leninsky prosp., 119991, Moscow, Russian Federation

    V. S. Khotimsky & P. V. Pivovarov

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  1. V. S. Khotimsky
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  2. P. V. Pivovarov
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Khotimsky, V.S., Pivovarov, P.V. Metallation of poly(1-trimethylsilyl-1-prop-1-yne) and poly(vinyltrimethylsilane) with superbases. Russian Chemical Bulletin 51, 2248–2254 (2002). https://doi.org/10.1023/A:1022139503359

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