Light-Fueled In-Operando Shape Reconfiguration, Fixation, and Recovery of Magnetically Actuated Microtextured Covalent Adaptable Networks.

ABSTRACT: Covalent adaptable networks (CANs) enable reprocessability via dynamic bond exchange above their topology freezing transition temperature (T_v) despite chemical crosslinks. However, conventional CANs often exhibit insufficient viscosity reduction upon heating, necessitating extensive application of heat and pressure through direct contact for processing. In this study, a disulfide-bonded CAN is introduced to facilitate UV-assisted processing at room temperature, in addition to conventional thermal processing above T_v. At room temperature, UV irradiation accelerates stress relaxation, mirroring the effect of high-temperature activation (> T_v = 86 °C) without UV. Molecular dynamics (MD) simulation also reveals the underlying mechanism of UV- and heat-induced d

SUBMITTER: Yoon Y 

PROVIDER: S-EPMC12506623 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature