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.
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Mitzner et al. (1994) studied this question.