Dielectric properties of poly(enaminonitrile)s

Poly(enaminonitrile)s (PEANs), a new class of thermally stable aromatic pol ymers, possess excellent thermal stability, good mechanical properties and are easily soluble in many organic solvents. Flexible, tough films can be c ast from these solutions. These polymers undergo a 'curing' reaction at 300 -350 degrees C to insoluble, more dimensionally stable materials without ev olution of volatile byproducts. Ne summarize here the dielectric data measu red at a frequency of 100 kHz, 25 degrees C for some PEANs, and discuss the results in relation to their structures.