PHOSPHIMIDAZOLENE POLYMERS.
Abstract
Simple low molecular weight model compounds containing the phosphimidazolene were prepared from o-diamines and phosphorus dichlorides or diamides. Attempts to prepare polymers containing this ring structure, either by linking together preformed rings or by a simultaneous ring closure polymerization reaction between an aromatic tetra-amine and a bis(phosphonic dichloride), or a bis(phosphonic diamide), gave incomplete reactions and cross-linking. The polymers obtained were in general brittle infusible solids and hydrolytically unstable. The preparation of some new diphosphorus compounds is described. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1965
- Accession Number
- AD0477260
Entities
People
- R. Twaits