Aromatized polyacetylenes

Details Aromatized polyacetylenes Aromatized polyacetylenes

C - Chemistry, Metallurgy

08

F

402/34

C08F 8/28 (2006.01) C08F 8/48 (2006.01) C08F 38/00 (2006.01)

Patent

CA 1043042

AROMATIZED POLYACETYLENES Abstract of the Disclosure Polyacetylenes, either homopolymers or copolymers, are rendered more soluble and/or more thermally stable with- out destroying their film-forming properties and with minimal decrease in their high carbon content by reacting them:with one or more 2,3,4,5-tetrasubstituted cyclopenta- diones commonly called tetracyclones. These latter compounds, together with the acetylenic groups of the polymer, undergo a cyclization reaction to produce a 3,4,5,6-tetrasubstituted 1,2-phenylene moiety in the polymer backbone. Because of their high thermal stability these polymers are especially useful as binders for graphite fibers in making grap hite composites or to produce films or coatings for high temperature applications.

212036

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