Accession Number : AD0664756

Title :   ELASTOMERIC POLYETHER GLYCOL-POLYCARBONATE COPOLYMERS.

Descriptive Note : Technical rept.,

Corporate Author : ARMY WEAPONS COMMAND ROCK ISLAND ILL RESEARCH AND ENGINEERING DIV

Personal Author(s) : Alabran,D. M.

Report Date : DEC 1967

Pagination or Media Count : 23

Abstract : High molecular weight (>400,000) polyether glycol-polycarbonate block copolymers with excellent flexibility at low temperatures were synthesized by the copolycondensation of polyether glycols and 2,2-bis(4-hydroxyphenyl)propane with phosgene. The polyether glycol prepolymers were prepared using varying ratios of tetrahydrofuran (THF) ethylene oxide (EO) and incorporating allyl glycidyl ether (AGE) as a source of pendant unsaturation for vulcanization. (Author)

Descriptors :   (*ELASTOMERS, SYNTHESIS(CHEMISTRY)), (*POLYESTER PLASTICS, SYNTHESIS(CHEMISTRY)), ETHERS, GLYCOLS, ESTERS, COPOLYMERIZATION, CONDENSATION REACTIONS, VULCANIZATION, MECHANICAL PROPERTIES

Subject Categories : Elastomers and Rubber

Distribution Statement : APPROVED FOR PUBLIC RELEASE