Ultrahigh toughness of stretchable ratiometric mechanofluorescent polyurethane elastomers enhanced by dual slide-ring motion of polyrotaxane cross-linkers and daisy chain backbones

Abstract

Mechanofluorophoric polyurethane elastomers containing dual slide-ring motion of daisy chain backbones and polyrotaxane crosslinkers are created, which show noble mechanical features and ratiometric mechanofluorescent responses under tensile forces.