3D printing of thermoreversible polyurethanes with targeted shape memory and precise <i>in situ</i> self-healing properties

Abstract

3D printable thermoreversible polyurethanes (PDAPUs) are synthesized, which facilitate the manufacturing of smart devices with 3D structures. The cross-linking of aniline trimer in PDAPUs plays a critical role in realizing light controllable precise selfhealing and targeted shape memory.