SYNTHESIS OF POLYETHER-MODIFIED POLYCARBONATE ELASTOMERS.

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Abstract:

Block copolymers based on polyether polyols and compounds related to the bisphenol structure were synthesized by copolycondensation with phosgene. Elastomers were obtained from the copolycondensation of hydroxy terminated polyethers with phenolphthalein, diphenolic acid or derivatives of diphenolic acid. These elastomers were crosslinked with sulfur and peroxide curing systems, and exhibited tensile strengths up to 2250 p.s.i., 13 percent volume swell after immersion in ASTM No. 3 Oil for 70 hours at 212F, and flexibility at temperatures below-67F. Author

Author(s):
Faoro, Richard A.
Author Organization(s):
ARMY WEAPONS COMMAND ROCK ISLAND ILL SCIENCE AND TECHNOLOGY LAB
Descriptive Note:
Technical rept.,
Pagination:
0017

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-70-115
Project Number(s):
DA-1-T-061102-B-13-A
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*ELASTOMERS, SYNTHESIS(CHEMISTRY)), (*COPOLYMERIZATION, ELASTOMERS), CARBONATES, PHENOLS, CROSSLINKING(CHEMISTRY)
Field(s)/Group(s):
Polymer Chemistry, Elastomers and Rubber
Keyword(s):
BISPHENOLS, *BLOCK COPOLYMERS, *POLYCARBONATE RESINS
Report Date:
1969 Dec 01