SYNTHESIS OF ELASTOMERS CONTAINING SI-N BONDS IN THE MAIN CHAIN
Abstract
The preparation of several new ethylene-bridged trisilazane monomers and intermediates is reported. Additional examination of the polymerization of these monomers and monomers described in earlier reports has not revealed a method for preparing polymeric materials with intrinsic viscosities greater than about 0.2. Unsuccessful attempts were made to increase the degree of polymerization by modification of the polymerization temperature, solvent, and catalyst. The effect of purity of the chlorosilanes used in the monomer synthesis was also studied; and the presence of small quantities of chlorotrimethylsilane was not a significant factor in limiting the polymer mol-wt. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1962
- Accession Number
- AD0274489
Entities
People
- L.w. Breed
- R.l. Elliott
Organizations
- MRIGlobal