Model Compounds of Hydrophilic Gels. II. 2011 model I corresponds to a lower content of the NH groups after an incomplete aminolysis of the starting polymer; the spectrum also contains the amide II band at 1540 cm-1 (deformation vibrations NH in the interaction with the valence vibration CN) 4, as well as the band of the valence vibration C= O of the ester groups at 1730 cm-\ whose presence corresponds to an incomplete conversion during ...