New poly(imide-pyridazine-amide)s have been synthesized by the solutio
n polycondensation of aromatic diamines containing preformed pyridazin
e rings with diacid chlorides which incorporate both imide and hexaflu
oroisopropylidene units. Solubility, thermal stability and electro-ins
ulating properties of these compounds are discussed and compared with
those of fluorinated poly(imide-amide)s which do not contain pyridazin
e rings, and also with those of other related heterocyclic polymers th
at have been previously reported.