Poly (perfluoroalkylene oxide) oxadiazoles and their synthesis

Details Poly (perfluoroalkylene oxide) oxadiazoles and their synthesis Poly (perfluoroalkylene oxide) oxadiazoles and their synthesis

1975-02-27

1976-06-01

Schofer, Joseph L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 2R, 526246, 526258, 526 78, C08G 7306

Patent

active

039608140

ABSTRACT:
A perfluoroalkylene oxide dinitrile, an aromatic dinitrile N-oxide and an aromatic trinitrile are terpolymerized to obtain a poly(perfluoroalkylene oxide) oxadiazole containing pendent aromatic nitrile groups. The fluorinated polymer product can be cured with a polyfunctional nitrile N-oxide to provide elastomers that are particularly useful in aircraft applications involving use temperatures ranging from about -70.degree.F to about 400.degree.F. For example, the elastomers can be employed as fuel tank sealants, coatings, O-ring seals, diaphragms, and the like.

REFERENCES:
patent: 3317484 (1967-06-01), Fritz et al.

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