“…Polyurethane has some specificity with respect to its film forming ability, good toughness, high abrasion resistance, good chemical resistance, excellent adhesion, high tear strength, tunable mechanical strength, adequate flexibility and elasticity, including fabrication versatility due to the versatility in structure and composition of the components [1][2][3]. Polyurethanes are generally segmented block copolymers having alternating soft and hard segments.…”