This paper addresses paper the synthesis, characterization and properties of a new class of materials prepared from amino-phenyl esters. These materials are polymers prepared by self-condensation of the monomer at high temperature, using HCl as catalyst under different pressure conditions. The polymers were characterized by elemental analysis, FT-IR, H-1-NMR, C-13-NMR, UV-visible and fluorescence spectroscopy. The composition, viscosities and thermal stability were also determined. The results showed that the polymers are hybrid materials because they contain simultaneously amide and imine groups in their backbones. When diminishing the pressure of the reaction medium, the polymers were obtained with higher viscosities, which were related with the composition and the thermal stability. Moreover, the polymers presented fluorescence which was associated to the polymers' different functional groups.