RESEARCH AND DEVELOPMENT OF HIGH TEMPERATURE STABLE ORGANO-PHOSPHORUS COMPOUNDS
Abstract
A series of alkylene and arylenebisdiphenylphosphines and the corresponding bisphosphine oxides were prepared by modification of existing synthetic methods. Thermal testing by a weight loss and chemical change technique was carried out at 300-450 C in a N atmosphere. The arylenebisphosphines and bisphosphine oxides are more stable than alkylene, with the tri- and tetramethylene and the neopentylene being the most stable alkylene bridges. The aromatic series appears to begin change by losing ring hydrogen with subsequent ring condensation. The alkyls all seem to produce P-O-R structures or, in the case of phosphines, P-H and products derived therefrom. A thermal study of simple arylphosphines and arylphosphine oxides and sulfides has yielded some clues to decomposition routes, which with the above data allow some tentative suggestions on mechanisms to be made. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1961
- Accession Number
- AD0263891
Entities
People
- Charles F. Baranauckas
- Richard D. Carlson