Polyurethane elastomers based on polymer polyols

Linear polyurethane elastomers based on polymer polyols were synthesized by the one-shot technique. The hard-segment content of the polyurethanes, the chain length of the base polyether, and the styrene/acrylonitrile content and/or the ratio of the polymer polyols were varied. The mechanical properties and the results of the dynamic mechanical analysis are discussed and compared with those of equivalent crosslinked polyurethane elastomers.