Influence of chemical crosslinks on the elastic behavior of segmented block copolymers

With increasing amounts of chemical crosslinks the glass transition temperature and the modulus did not change noticeably. However, the elastic behavior as measured by compression set and tensile set, improved dramatically. Giving time all materials recovered completely and with increasing amount of chemical crosslinks this recovery happened faster. An explanation is given for the (viscoelastic) deformation in these copolymers.