Enhancing polyurethane properties via soft segment crystallization

• Published in: Polymer (Guilford) Vol. 46; no. 23; pp. 10158 - 10166
• Main Authors: Sonnenschein, Mark F., Lysenko, Zenon, Brune, Douglas A., Wendt, Benjamin L., Schrock, Alan K.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 14.11.2005; Elsevier
• Subjects: Applied sciences; Crystallization; Elastomer; Exact sciences and technology; Mechanical properties; Organic polymers; Physicochemistry of polymers; Polyurethane; Properties and characterization; Polyurethane; Elastomer; Crystallization; Elastic modulus; Polyurethune; Mechanical properties; Composition effect; Experimental study; Polyurethane elastomer; Compressive stress; Lamellar structure; Esterurethane polymer; Morphology; Supramolecular structure; Foam(plastics); Property structure relationship; Tear strength; Etherurethane polymer; Mechanical hysteresis

Semi-crystalline polyester diols with relatively high melting points and enthalpies of crystallization are shown to form nearly co-continuous lamellar structures in thermoplastic polyurethanes using polyether soft segments. This high aspect ratio crystalline structure results in materials with excep...