Accession Number:

AD0432014

Title:

SYNTHESIS OF ELASTOMERS CONTAINING BORON,

Descriptive Note:

Corporate Author:

ROCK ISLAND ARSENAL ILL

Personal Author(s):

Report Date:

1964-01-23

Pagination or Media Count:

19.0

Abstract:

Monomers containing the 1, 2-dicarbaclovododecarborane unit carborane, C2 B10 H10 were prepared from substituted acetylenes and decarborane. A tough elastomer was produced by the emulsion copolymerization of butadiene and isopropenylcaborane. Polyesters were prepared from bis hydroxymethyl carborane and succinic, perfluoroglutaric, adipic and terphthalic diacid chlorides. The polycarborane adipate was a soft, tough, partially elastomeric material of low melting point. No press cure of this material was obtained, but with diisocyanate the material set up into a tough, leathery product. Other curing systems were attempted. Weight losses after air oven aging of the raw polyesters were obtained and found to be lower than a typical commercial polyester. A polymer prepared from bis acryloxymethyl carborane and methylphenylsilane was highly crosslinked. An analogous polymer, but without boron, was prepared from butylene dimethacrylate and methylphenylsilane. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE