Light‐Induced Topological Patterning toward 3D Shape‐Reconfigurable Origami

Abstract Shape‐reconfigurable materials are crucial in many engineering applications. However, because of their isotropic deformability, they often require complex molding equipment for shaping. A polymeric origami structure that follows predetermined deformed and non‐deformed patterns at specific temperatures without molding is demonstrated. It is constructed with a heterogeneous (dynamic and static) network topology via light‐induced programming. The corresponding spatio‐selective thermal plasticity creates varied deformability within a single polymer. The kinematics of site‐specific deformation allows guided origami deployment in response to external forces. Moreover, the self‐locking origami can fix its geometry in specific states without pressurization. These features enable the development of shape‐reconfigurable structures that undergo on‐demand geometry changes without requiring bulky or heavy equipment. The concept enriches polymer origamis, and could be applied with other polymers having similar chemistries. Overall, it is a versatile material for artificial muscles, origami robotics, and non‐volatile mechanical memory devices.