Synthesis and characterization of some aliphatic polyamides containing 4,4′-azodiphenylene units

Polyamides containing azo groups were prepared by the phosphorylation method from 4,4′-diaminoazobenzene and malonic, succinic, glutaric, adipic, azelaic, sebacic, or chlorosuccinic acid. The polymers were characterized by their viscosity and solubility, and by UV-visible and IR spectroscopy, TG, and DTA.