Polyamides Containing Oxyethylene Linkages: Synthesis and Characterization

New polyamides containing oxyethylene linkages were prepared. The two non-linear diamines containing oxyethylene linkages namely, 1,2-bis(3-aminophenoxy) ethane and bis[2-(3-aminophenoxy)ethyl] ether, were each polymerized by a low temperature solution polycondensation with isophthaloyl chloride and terephthaloyl chloride. The polyamides obtained were characterized by solubility tests, viscosity measurements, IR spectroscopy and by X-ray diffraction studies. The thermal behaviour of the polyamides was studied by thermogravimetric analysis in air.