Abstract

Benzophenone azine is a useful intermediate for hydrazine production. It can be formed in high yield by oxidation of benzophenoneimine in the presence of a copper‐amine catalyst and dioxygen at low temperatures. We have used this method to synthesize aromatic polymers with azine linkages from six diketoimine monomers. The resulting polymers reached an average molecular weight of 10,000 and number average molecular weight of 6000 Daltons and were film forming materials.

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