The Properties and Applications of Shape Memory Polyurethanes

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Abstract
In this article, the important properties and applications of shape memory polyurethanes are introduced. A number of dramatic property changes occurring at the glass transition temperature are reviewed, including elastic modulus, hardness, damping, variable vapor permeability, shape memory, and fixity. Stress-strain-temperature data are presented to differentiate shape memory polyurethane from shape memory alloys. Finally, several state-of-the-art applications are described.

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