Melting, Solidification, and Crystallization of a Thermoplastic Polyurethane as a Function of Hard Segment Content - Stribeck, Almut (Institute of Technical and Macromolecular Chemistry) ; Eling, Berend (Institute of Technical and Macromolecular Chemistry) ; Pöselt, Elmar (BASF Polyurethanes GmbH) ; Malfois, Marc (ALBA Laboratori de Llum de Sincrotró) ; Schander, Edgar (BASF Polyurethanes GmbH)