SOLUBLE POLYNAPHTHYLIMIDES CONTAINING PENDENT NAPHTHYLIMIDE GROUPS

Polynaphthylimides containing naphthylimide and (p-phenoxy) naphthylimide side groups were obtained by the interaction of new aromatic tetramines, bis[3-amino-4-(p-aminophenoxy)]arylenes, with equimolar amount of naphthalene-4,5,8-tetracarboxylic acid dianhydride and twofold molar amount of naphthalic anhydride. Structures and properties of the final polynaphthylimides depend on the nature of starting monomers and subsequent introduction of the monomers to the reaction mixtures. Polynaphthylimides thus obtained demonstrate good solubility in organic solvents, high glass transition temperatures and good stability.