C. Simionescu, M. Grigoras, I. Cianga
Jul 1, 1998
Citations
0
Influential Citations
23
Citations
Journal
European Polymer Journal
Abstract
Abstract This paper reports a novel method for the synthesis of wholly aromatic polyazomethines by oxidative polymerization of monomers having a preformed azomethine linkage. Two monomers having a Schiff base type structure: N -pyrrolylmethylen-1-aminonaphthalene ( I ) and N -pyrrolylmethylen-2-aminonaphthalene ( II ) were synthesized by coupling of pyrrole 2-carboxaldehyde with 1- and 2-aminonaphthalene, respectively. Their cation-radical polymerization was performed by chemical oxidation with ammonium persulfate and iron trichloride. Aromatic polyazomethines were obtained with good thermal properties. The structures of the polymers were studied by IR spectroscopy and were correlated with Huckel molecular orbital calculations for evaluating the monomers reactivity and the most probable linkage sites of the monomer units in the polymer chain.