Accession Number:

AD0600063

Title:

SYNTHESIS AND EVALUATION OF POLYMERS WITH SPECIAL PROPERTIES.

Descriptive Note:

Summary rept.

Corporate Author:

NOTRE DAME UNIV IND

Report Date:

1964-03-13

Pagination or Media Count:

35.0

Abstract:

The previously unknown monomeric 1-acryloxy-2-butyne and 1-methacryloxy-2-butyne were synthesized. Other potential monomers of related structure, propargyl acetate, propargyl acrylate, propargyl methacrylate, 1-acryloxy-3butyne, 2-acryloxy-3butyne, and 1-diethylamino-4-acryloxy-2butyne, were also prepared. The monomers 1-acryloxy-2butyne and 1-methacryloxy-2-butyne were shown to form crosslinked polymers with radical and cationic initiators. Linear, uncrosslinked polymers were prepared from these two monomers with anionic initiators such as sodium and butyl lithium. These linear polymers were shown to contain free acetylenic groups which could undergo post reactions 1 with bromine to give a dibromide derivative, 2 with decaborane to give a carborane, and 3 to undergo crosslinking as a post reaction. In contrast, the butyne monomers which contained a terminal acetylenic hydrogen were found to products of undetermined structure. The thermal and radical-crosslinking of the linear polymers indicate their potential use as thermosetting adhesives while the post-brominated polymers may be useful for their self-extinguishing properties. The polymeric carboranes may find utility as fuels and as neutron-capture media. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE