Poly(Fluoroorganophosphazenes).
Abstract
Novel cyclic and polymeric acetylenicphosphazenes have been prepared by the reaction of alkali phenylacetylide salts and dichlorophosphazenes, (Cl2PN)(x). The poly(acetylenicphosphazenes) are readily brominated and are potential intermediates to a variety of novel polyphosphazenes, such as poly(fluoroorganophosphazenes) and poly(ethylenicphosphazenes). Preparation of cyclic or linear perfluoroalkoxyphosphazenes was unsuccessful. Alkali perfluoroalkoxides were prepared in situ, via alkali fluorides and perfluorocarbonyl compounds, and reacted with dihalophosphazenes, (Cl2PN)3, (F2PN)3, and (Cl2PN)(n) polymer. Chlorination of trifluoroethoxyphosphazenes as a route to cyclic or linear perfluoroethoxyphosphazenes was unsuccessful. Preparation of perfluoroalkylphosphazenes via organometallic reagents and cyclic or linear dichlorophosphazenes was unsuccessful. A cyclic perfluoroaryloxyphosphazene ((C6F5O)2PN)3, was prepared but failed to polymerize at elevated temperature. Directed preparation of linear ((C6F5O)2PN)(n) polymer by substitution of (Cl2PN)(n) polymer afforded an impure intractable product.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1977
- Accession Number
- ADA042912
Entities
People
- Arthur H. Gerber