Crosslinking of Semiaromatic Polyesters toward High‐Temperature Shape Memory Polymers with Full Recovery

Abstract In this work, high‐temperature shape memory polymers are realized by end‐group crosslinking of the semiaromatic polyesters polyethylene terephthalate as well as polybutylene terephthalate. Both networks exhibit trigger temperatures distinctly higher than 200 °C and excellent shape memory properties such as storable strains of 200%, full fixity of the applied strain in the temporary shape, and full recovery of the permanent shape.