Organosilicon Compounds and Organosilicon Polymer Intermediates.

Abstract

A. The sodium condensation of CH3SiHCl2 has been studied. It gives products of type (CH3SiH)x(CH3Si)y)n which are not useful precursors for SiC. b. Base-catalyzed reorganization of the polysilanes in (a) gives new materials whose pyrolysis gives markedly higher ceramic yields. c. Useful preceramic hybrid polymers are obtained by the reaction of the polysilanes in (a) with a poly (silylamide) of type ((CH3SiHNH)a(CH3SiN)b-(CH3SiHNK)c)m. d. This hybrid polymer approach also is useful in upgrading th Yajima polycarbosilane. e. The polysilanes of (a) also may be converted to useful preceramic materials by reaction with poly(vinyl) compounds, notably cyclo-((CH2=CH)CH3Si-NH)3. Keywords: Preceramic polymers; Organosilicon chemistry; Silicon carbide; and Silicon nitride.

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Document Details

Document Type
Technical Report
Publication Date
Dec 09, 1985
Accession Number
ADA167015

Entities

People

  • Dietmar Seyferth

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Ceramic Materials
  • Chemical Synthesis
  • Chemistry
  • Classification
  • Condensation
  • Decomposition
  • Lysis
  • Materials
  • Materials Science
  • Organizational Realignment
  • Organosilicon Compounds
  • Precursors
  • Pyrolysis
  • Security
  • Silicon
  • Silicon Carbide
  • Silicon Compounds

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Technology