Polyesters of various molecular weights terminated with ethynyl groups. As ethynyl-terminated polyesters are exposed to elevated temperatures, thermally induced reaction of ethynyl groups occurs to provide cross-linking and chain extension. Reaction raises use temperature of polymer and greatly improves resistance to solvents. New materials produced by this process potentially useful as adhesives, composite matrices, solvent-resistant coatings, membranes, and films.
Ethynyl-Terminated Ester Oligomers and Polymers
NASA Tech Briefs ; 9 , 1
1985-06-01
Sonstige
Keine Angabe
Englisch
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