SYNTHESIS OF REGULATED STRUCTURE POLYPHENYLETHER-SILOXANE BLOCK COPOLYMERS.
Abstract
In an attempt to prepare elastomers stable at high temperatures, polymers with molecular weights estimated to be as high as 100,000 were formed by condensation of p,p'-dihydroxydiphenylether with diphenylsilanes. Thermal gravimetric analyses for some of these polymers are reported, and their thermal stability and elastomeric properties are discussed. The preparation of dihydroxy derivatives of diand poly- phenyl ethers by alkaline hydrolysis and by intermolecular dehydration is also described. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1964
- Accession Number
- AD0600121
Entities
People
- Eugene S. Yankura
- Robert Macfarlane Jr.