D2-'meta'-Carborane-Siloxanes. IV. Synthesis of Linear, High Molecular Weight Polymers.
Abstract
A new facile route to linear, high molecular weight D2-meta-decacarborane-siloxanes was developed based on the condensation reaction between bis-ureidosilanes and carborane disilanol. By using nmr to monitor the reaction stoichiometry, polymers with molecular weight greater than or equal to 250,000 have been prepared. Moreover, because of the mild reaction conditions, structural modifications of the polymer backbone have been readily achieved. These linear high molecular weight polymers overcome the fabrication difficulties encountered in previously prepared D2 polymers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 05, 1976
- Accession Number
- ADA032463
Entities
People
- D. W. Mcneil
- E. Hedaya
- G. T. Kwiatkowski
- J. H. Kawakami
- P. W. Kopf