POLYMERIZATION OF DIMETHYLCYCLOSILAZANES IN THE PRESENCE OF AMMONIUM CHLORIDE,

Abstract

Experiments were conducted to obtain dimethylsilazane polymers by catalytic polymerization of dimethylcyclosilazanes in the presence of ammonium chloride and hexamethyldisilazane with and without pressure. Ammonium chloride was found to promote not only the polymerization of dimethylcyclosilazenes but also their polycondensation, especially at temperatures above 300 degrees centigrade. Due to slow decomposition by ammonium halides, the hexamethyldisilazane is hardly suitable for chain breaking during the polymerization of dimethylcyclosilazanes. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 02, 1969
Accession Number
AD0701028

Entities

People

  • G. Ya. Rumba
  • I. I Zviedre

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Chemical Compounds
  • Chemical Reactions
  • Chlorides
  • Decomposition
  • Halides
  • Polymerization

Fields of Study

  • Chemistry

Readers

  • Breast cancer cell signaling and growth regulation.
  • Materials Science and Engineering.
  • Polymer Science and Technology