Interprenetrating polymer networks on the basis of diisocyanates

By a two-step polymerization of a mixture of diisocyanates with various oligoether-acrylates, in the presence of tertiary amines or their combinations with radical type initiators, highly crosslinked polymer composites of the interpenetrating networrk, type were synthesized. Their physico-mechanical properties and dielectric relaxation were studied, yielding conclusions on the specific morphology of the obtained systems.