Accession Number:

ADD005009

Title:

Fluoroalkyleneether Difunctional Compounds.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s):

• Tamborski,Christ

Report Date:

1978-03-28

Pagination or Media Count:

4.0

Abstract:

Omega-carbomethoxyperfluoroalkylene ether iodides are reacted with metallic zinc to yield alpha-omega perfluoroalkyleneether diesters. The diesters are reacted with ammonia to form diamides, the diamides are reacted with phosphorus pentoxide to form dinitriles, and the dinitriles are esterified with methanol to form diimidate esters. The diimidate esters are particularly useful as monomers in synthesizing perfluoroalkylene ether bibenzoxazole polymers possessing thermooxidative stability and outstanding low temperature viscoelastic properties. Author

Descriptors:

• *Patents
• *Esters
• *Ethers
• *Fluorine compounds
• *Benzoxazoles
• *Synthesis(Chemistry)
• *Seals(Stoppers)
• Monomers
• Polymers
• Thermal stability
• Oxidation resistance

Subject Categories:

• Polymer Chemistry
• Adhesives, Seals and Binders

Distribution Statement:

APPROVED FOR PUBLIC RELEASE