NEW ARYLOXY-SUBSTITUTED CONDENSATION POLYMERS

Large family of new aromatic diamines containing aryloxy side groups w as developed. All the diamines were obtained on the basis of 2,4,6-tri nitrotoluene (TNT) - very cheap and available explosive material. TNT was converted into 1,3,5-trinitrobenzene (TNB); subsequent aromatic nu cleophilic nitro-displacement reactions led to mono- and diaryloxy-sub stituted mono- and dinitrobenzenes which were converted into the final aryloxy-substituted diamines. Interaction of the diamines obtained wi th aromatic dicarboxylic acids chlorides and aromatic tetracarboxylic acids dianhydrides led to the formation of new aryloxy-substituted pol yamides and polyimides combining high thermal properties with solubili ty in organic solvents.