Abstract
New polynaphthylimides containing thiophenoxide substituents are prepared via the interaction of 5-phenylthiophenylene-1,3-diamine with dianhydrides of naphthalene-1,4,5,8-tetracarboxylic acid and 4,4′-(1,4-phenylenedicarbonyl)-bis(naphthalene-1,8-dicarboxylic acid) under the conditions of high-temperature polycyclocondensation in phenolic solvents. The polymer-analogous oxidation of sulfide groups to sulfone groups yields previously undescribed polynaphthylimides with phenylsulfone substituents.
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