Polyacetylene production

Details Polyacetylene production Polyacetylene production

C - Chemistry, Metallurgy

08

F

18/1032, 31/154,

C08F 138/02 (2006.01)

Patent

CA 1218799

Case 5247 ABSTRACT OF THE DISCLOSURE Polyacetylene production The present invention relates to coherent poly(acetylene) films and to a method of producing such polyacetylenes. The process comprises solvent casting a solution of a polymer of the general formula (V) derived from a precursor (IV), and transforming the pre-cast, polymer (V) into a poly(acetylene) (III) film and a by-product (VI) at a temperature between 20 and 200°C at reduced pressure. The poly(acetylene) thus formed has a substantially higher density than the poly(acetylene) polymers produced hitherto. The morphology of the poly(acetylene) produced is that of a thin, coherent solid film with no voids and, no basic structural units are visible even at a magnification of 10,000 times. The polymers also have a lower crystallinity than those produced by conventional methods.

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