Highly flexible, strong and dynamic recovery solid-solid phase change materials based on polythiourethane–polyurethane for thermal management

Dynamic TCB-crosslinked SSPCMs achieve zero leakage, tunable phase change (15.2–51.5 °C), high latent heat (77.0 J g −1 ), robust mechanics (28.3 MPa strength, 976% ductility), and >90% recyclability for sustainable thermal management.