Poly-(1,3-Phenylene hexafluorotrimethylene).
Abstract
Two routes involving fluoralkylcopper intermediates have been used to prepare poly-(1,3-phenylenehexafluorotrimethylene): by the reaction of 1-iodo-3-(m-iodophenyl)hexafluoropropane and an excess of copper, and by the reaction of stoichiometric amounts of 1,3-di-iodohexafluoropropane and 1,3-di-(m-iodophenyl)hexafluoropropane with an excess of copper, both reactions being done in polar aprotic solvents. The preparation of the intermediate iodo compounds are described. The polymer is a brittle resin which becomes elastomeric at 30-35C, and is quite thermally stable. Extensive weight loss does not occur below 450C in air or in nitrogen. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1971
- Accession Number
- AD0736234
Entities
People
- J. Thrower
- M. A. H. Hewins
- Patricia A. Grattan
- V. C. R. Mcloughlin
Organizations
- Royal Aircraft Establishment