Liquid crystalline elastomers (LCEs) have demonstrated tremendous potential in applications such as soft robotics, biomedical materials, electronics, sensors, and biomimetic systems. The physical properties of LCEs are controlled by the degree of crosslinking, nature of the mesogens, and mesogen orientation in the LCE network structure. A wide range of dynamic covalent bonds (DCBs) capable of dynamic bond exchange reactions (DBERs) have been introduced into LCE structures to obtain intelligent materials in recent decades. In this review article, we discuss the molecular constitution, macrostructure, morphing mechanism, recent advances in LCEs with dynamic covalent bonds, the influence of DCBs on self-healing, reprogramming and reprocessing properties of LCE actuators, and challenges and opportunities in incorporating dynamic chemistry in the field of LCE actuators.

液晶弹性体 (LCE) 在软机器人、生物医学材料、电子产品、传感器和仿生系统等应用中展示了巨大的潜力。LCE 的物理性质由 LCE 网络结构中的交联度、介晶的性质和介晶取向控制。近几十年来，将能够进行动态键交换反应 (DBER) 的各种动态共价键 (DCB) 引入到 LCE 结构中以获得智能材料。在这篇综述文章中，我们讨论了分子构成、宏观结构、变形机制、具有动态共价键的 LCE 的最新进展、DCB 对 LCE 致动器的自愈、重新编程和再加工特性的影响，