Short‐Term Morphology Relaxation of Thermoplastic Polyurethane Elastomers after Fast Strain Steps

Front Cover: A pneumatic relaxometer allows thermoplastic polyurethane elastomers to expand suddenly. Their morphology is monitored by SAXS. It is seen that the basic domain structure changes in a fraction of a second, whereas the stress relaxes much more slowly. Column heights indicate the scattering power Q. This is reported by Almut Stribeck and co-workers in article number 2000386.