Monomer Synthesis 2.2’-(1,4 -phenylene)-bis (2-oxazoline) Polymer Precursor And Their Application To The Synthesis Of Copolymer

This work is concerned the cyclic imino ether (coupler chains) synthesis, namely, 1, 4 (phenylene) bis (2-oxazoline) (PBO) from condensation reaction of a nitrite derivative dicyanobenzene (DCB) with ethanolamine (EA). The reaction is carried out in bulk at elevated temperature 130 ° C in the presence of zinc acetate catalyst. The PBO was characterized by infrared spectroscopy (IR), 1H NMR spectroscopy and differential scanning calorimetry (DSC). In the second part, the polyaddition reaction between chain coupler 1.4 (phenylene) bis (2-oxazoline) and oligomere with carboxy end groups, were established the structural analysis by 1H NMR and IR show the feasibility these coupling reactions.