Icosahedral Carboranes. XIX. The Preparation of Linear Trifluoropropyl-Substituted Polycarboranylene-siloxanes.

Abstract

A series of linear trifluoropropyl-substituted polycarboranylenesiloxanes with molecular weights between 3,500 and 13,000 has been prepared by the tetramethyl-guanidine/sulfuric acid catalyzed condensation of various silanol terminated momomers as well as by simple hydrolytic condensation of m-B10H10C2(SiMePfOSiMePfCl)2 and B5H5C2(SiMePfCl)2 (where P=-CH2CH2CF3). The polymers containing the C2B5H7 and C2B10H12 carboranes range from hard glasses to viscous gums and rubbers, are more thermally stable than fluorinated silicones with comparable resistance to solvents, and are potentially useful as high temperature fuel tank sealants. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1971
Accession Number
AD0727575

Entities

People

  • Haywood Hooks Jr
  • John F. Sieckhaus
  • Karl O. Knollmueller
  • Robert N. Scott

Organizations

  • Olin Corporation

Tags

DTIC Thesaurus Topics

  • Condensation
  • Critical Temperature
  • Fuel Tanks
  • Glass Transition Temperature
  • Guanidines
  • High Temperature
  • Molecular Weight
  • Resistance
  • Transition Temperature

Fields of Study

  • Chemistry

Readers

  • Organic Chemistry
  • Polymer Science and Engineering.