Synthesis and Characterization of Oligo-azomethine by Thermal Condensation Using New Type of Monomers

Summary The synthesis and characterization of a variety of aromatic oligo-azomethine, by thermal polymerization of news monomer catalyzed by concentrated HCl, is reported. The new oligo-azomethine has been characterized using Uv-visible, infrared, ¹H-NMR and ¹³C-NMR spectroscopy. Other techniques such as elemental analysis and thermo-gravimetric analysis are also presented. The oligomeric material was synthesized by condensation between the ester group and the amine group. Surprisingly the oligomeric material retains the OCH₂CH₃ groups and it becomes bound to the C=N groups. The new type of monomers (aminophenyl ester) allow, at the first time, to introduce substituent covalent bonds to carbon atom of imine groups.