Synthesis and Solution Properties of Phenylated Polyquinolines. Utilization of the Friedlander Reaction for the Synthesis of Aromatic Polymers Containing 2,6-Quinoline Units in the Main Chain.

摘要

The condensation of 4-4'3'-diamino-3-3'-dibenzoyldiphenyl ether with a series of diacetyl and bis(phenylacetyl)aromatic monomers afforded a series of new high molecular weight polyquinolines. The polymers were prepared in solvents consisting of a premixed solution of m-cresol and either polyphosphoric acid or phosphorus pentoxide and, after isolation, were soluble in phenolic and chlorinated hydrocarbon solvents, although the polymers tended to crystallize from the latter solvents. Clear, tough, flexible films could be cast from 15-30wt% solutions, and all the polymers showed outstanding thermal and oxidative stability. (Author)