Accession Number:

AD0463850

Title:

SYNTHESIS OF HIGH-STRENGTH CHEMICAL RESISTANT ELASTOMERS FOR EXTREME TEMPERATURE SERVICE

Descriptive Note:

Final technical rept.

Corporate Author:

FMC CORP PRINCETON NJ

Report Date:

1965-01-01

Pagination or Media Count:

90.0

Abstract:

The synthesis of new fluorinated elastomers serviceable at low temperatures is described. Hexafluoroacetone and hydrogen-containing olefins have been found to form both low polymers and hydrogen-containing oxetanes on actinic irradiation. Evidence is presented to show that the intermediate is a biradical. A new elastomer system has been discovered involving the condensation of a polyfluorinated diol with a fluorocarbon diene. This unique fluorinated polyether has been found to have a very low transition temperature -54 C. Evidence has also been found that a polyfluorinated diol will condense with hexafluorobenzene. Polyurethane polymers have been successfully formed by condensation of a polyfluorinated diol with phosphorous-containing diisocyanates. Several new monomers are described.

Subject Categories:

  • Elastomers and Rubber

Distribution Statement:

APPROVED FOR PUBLIC RELEASE