Polyaminobismaleimides with amide units synthesis and properties

A serials of polyaminobismaleimides with different structures, having amide groups, were synthesized by Michael addition of various diamines (4,4-diaminodiphenylether, 1,4-bis(4-aminophenoxy)benzene, 1,2-bis [2- (4-aminophenoxy)ethoxy ethane to bismaleimides. The obtained monomers and polymers were characterized by infrared (IR) and proton nuclear resonance (H-1-NMR) spectroscopy. Thermal characterization of polymer was accomplished by differential scanning calorimetru(DSC) and dynamic thermogravimetric analysis(ATG). The relationship between the structure and the properties was studied as well as the reaction conditions for the synthesis of resins.