Boron-Nitrogen Polymers. I. Mechanistic Studies of Borazine Pyrolyses.
Abstract
Pyrolyses of B-triamino-N-triphenyl-, B-triamino-N-trimethyl-, and B-trianilino-borazines were performed between 150 and 300 C. Initial stages of degradation were accompanied by liberation of ammonia in addition to the expected aniline or methylamine; this was most pronounced for the methyl borazine. Aniline elimination proceeded more readily with the B-anilino than the B-amino isomer. Data obtained support a ring opening mechanism resulting in telomerization accompanied by aniline liberation and formation first of singly then doubly bridged dimers and finally doubly bridged tetramers. Thermal exposure up to 1000 deg C failed to give boron nitride; carbon was invariably retained. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 28, 1984
- Accession Number
- ADA146470
Entities
People
- D. H. Harris
- K. J. L. Paciorek
- R. H. Kratzer