Abstract
New polyamides having pyridine rings were prepared by the polycondensation reaction of pyridine 2, 5-dimethylamine with dicarboxylic acids of carbon number of 5 to 10. All of the polyamides obtained here melted at 178-255°C, and had good melt-spinnability. Copolymers were obtained by copolycondensation of hexamethylene-diammonium adipate and pyridine-2, 5-dimethyl-diammonium adipate in various molar concentrations of the component. The copolymers obtained here melted at 218-255°C, and also had good melt-spinnability, and the melting point of the copolymer has a minimum value in a definite molar ratio of the component.
