Perfluorocyclobutane ring-containing polyimides

Details Perfluorocyclobutane ring-containing polyimides Perfluorocyclobutane ring-containing polyimides

C - Chemistry, Metallurgy

07

D

C07D 209/48 (2006.01) C07D 487/04 (2006.01) C08G 73/10 (2006.01) C08G 73/12 (2006.01)

Patent

CA 2159910

Polyimides are prepared by (a) contacting monomers which are oligomers having at least one imide group or imide precursor group and at least two dimerizable perfluorovinyl end groups, and (b) exposing the monomers to a temperature of at least 50 °C for a sufficient time that a resulting polymer containing perfluorocyclobutane rings is formed wherein the monomers are oligomers having at least one imide group and perfluorovinyl end groups. These polymers are particularly well suited for formation in an extruding apparatus. The process and product polymers are claimed for monomers or oligomers of certain given imide structures and precursors.

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