Russian Chemical Bulletin

, Volume 68, Issue 1, pp 125–131 | Cite as

Cascade cocondensation of trifunctional chloro- and alkoxysilanes RSiX3 in nonaqueous media

  • E. S. TrankinaEmail author
  • B. G. Zavin
  • E. G. Chogovadze
  • N. V. Polshchikova
  • A. A. Kondrashova
  • N. S. Ikonnikov
Full Articles


The hydrolytic copolycondensation (HPC) of trifunctional monomers RSiX3 (R = Ph, Me; X are hydrolyzable RO or Cl groups) in nonaqueous organic solvents (toluene, dioxane) was studied. The in situ generation of water necessary for hydrolysis occurred via the reaction of carbamide with acetone or acetylacetone. The cascade synthesis of silsesquioxanes was carried out under the conditions of in situ water generation in nonaqueous media with the quantitative yield of organochloro- and alkoxysilanes from the reaction mixtures. The influence of the conditions of cascade HPC on the compositions, structures, and molecular weight characteristics of the obtained products was studied by GPC, 1H and 29Si NMR, and GC coupled with mass spectrometry.

Key words

hydrolytic polycondensation branched cascade synthesis organosilsesquioxanes trifunctional monomers trichlorophenylsilane trichloromethylsilane triethoxymethylsilane 


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Copyright information

© Springer Science+Business Media, Inc. 2019

Authors and Affiliations

  • E. S. Trankina
    • 1
    Email author
  • B. G. Zavin
    • 1
  • E. G. Chogovadze
    • 1
  • N. V. Polshchikova
    • 1
  • A. A. Kondrashova
    • 1
  • N. S. Ikonnikov
    • 1
  1. 1.A. N. Nesmeyanov Institute of Organoelement CompoundsRussian Academy of SciencesMoscowRussian Federation

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