Aromatized polyacetylenes

Details Aromatized polyacetylenes Aromatized polyacetylenes

1972-06-29

1977-03-08

Henderson, Christopher A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

428411, 526 13, 526 46, 526 54, C08F 900, C08G 2500

Patent

active

040113787

ABSTRACT:
Polyacetylenes, either homopolymers or copolymers, are rendered more soluble and/or more thermally stable without 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 cyclopentadiones 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 graphite composites or to produce films or coatings for high temperature applications.

REFERENCES:
patent: 3300456 (1967-01-01), Hay

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