Modeling Mechanical Properties of Segmented Polyurethanes

We review recent developments in modeling mechanical properties of segmented polyurethanes. Polyurethanes, poly(urethaneureas), polyureas, and polyisocyanurate materials are widely used in a variety of industries due to the versatility of their properties. We concentrate on segmented polyurethane elastomers and discuss the relationship between formulation variables, polymer morphology, and polymer mechanical properties (Young’s modulus, tensile stress-strain curves, etc.). Specifically, we show how one can derive predictive structure—property relationships by combining thermodynamic block copolymer theory with micromechanical models. The resulting predictions for Young’s modulus and stress-strain curves compare favorably with