Accession Number : ADD014200

Title :   Curable Polyether Compositions.

Descriptive Note : Patent, Filed 4 Oct 88, patented 23 May 86,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : DeFusco, Albert A ; Martin, Eugene C

Report Date : 04 Oct 1988

Pagination or Media Count : 4

Abstract : Pentadienyl ether terminated polyethers and maleimidomethyl carbonate terminated polyethers are selectively combined via a Diels-Alder reaction at room temperature. The resulting aliphatic copolyethers are characterized by having at least two chemically combined N(1)-oxycarbonyloxymethyl-4-oxymethyltetrahydrophthalimido groups interposed between polyether radicals within the copolymer chain. The aliphatic polyether precursors terminated with pentadienyl ether groups are synthesized by reacting an aliphatic hydroxy terminated polyether with a metal alkoxide to form at least the bis alkoxide derivative. The alkoxide derivative is then reacted with a halogen substituted pentadiene yielding the bis or tris pentadiene ether terminated polyether for use in the copolymer synthesis. Keywords: Patents. (aw)

Descriptors :   *COPOLYMERS, *PATENTS, *POLYETHERS, *SYNTHESIS(CHEMISTRY), ALIPHATIC COMPOUNDS, CHAINS, CHEMICAL RADICALS, HALOGENS, PENTADIENES, PRECURSORS, CHEMICAL REACTIONS, ROOM TEMPERATURE, SUBSTITUTES, PHTHALATES, IMIDES, OXYGEN, CARBONYL COMPOUNDS, METHYL RADICALS, HYDROGEN

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE