Polyamides from Aromatic Bisamines-Chloral Derivatives and Terephthaloyl Chloride by Polycondensation in Solution

New aromatic polyamides from the bisamines 2,2-bis(p-amine-pheny1)-1, 1,1-trichloroethane (Bisamine I), 2,2-bis(p-amine-pheny1)-1,1-dichloroethylene (Bisamine II), and terephtaloil chloride were synthesized by means of several methods. It was found that low-temperature solvent polycondensation is optimum for obtaining polymers with the best properties, which are predominantly better in the case of polyamides based on Bisamine II.