AN INVESTIGATION OF ORGANOSILAZANES BY BROAD-LINE NUCLEAR MAGNETIC RESONANCE,

Abstract

Because nuclear magnetic resonance techniques have proved so useful in the study of the sili cones, it nat followed that they be used to study the new types of silazane polymers. The purposes of the investigation were (1) to compare the properties of the silazanes in general with those of the siloxanes, determining, if possible, the types and degree of molecular motion present, (2) to study effect of tempera ture on the internal motion, and (3) to analyze the effect of cross-linking on the properties of the polymers at low temperatures, the silazanes usually being considerably more cross-linked than the siloxanes through the trifunctional nitrogen atoms. Several pure compounds also were examined, including the ring compounds and some chain species of low molecular weight; moreover, the effect of methyl substitution of the nitrogen atoms also was studied. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1963
Accession Number
AD0413957

Entities

People

  • James R. Barrante

Organizations

  • Harvard University

Tags

DTIC Thesaurus Topics

  • Low Temperature
  • Magnetic Resonance
  • Molecular Weight
  • Motion
  • Nitrogen
  • Nuclear Magnetic Resonance
  • Resonance
  • Spin Resonance

Readers

  • Organic Chemistry
  • Polymer Science and Engineering.
  • Snow Cover Descriptors for Reptiles and Their Illustrations.