Zhou Shang-Wu, Yu Chengyuan, Chen Meng, Shi Chen-Yu, Gu Ruirui, Qu Da-Hui
Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materiobiology and Dynamic Chemistry Institute of Fine Chemicals School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai China.
Smart Mol. 2023 Sep 21;1(2):e20220009. doi: 10.1002/smo.20220009. eCollection 2023 Sep.
Dynamic chemistry refers to a type of fundamental science that involves precise construction or regulation of reactional, motional, or constitutional dynamics of chemical systems. Under the meticulous design of chemists, the nanoscopic dynamics, either molecular or supramolecular, are managed to scale up to macroscopic dynamic properties. For example, the stimuli-induced conformational or configurational changes of polymer skeletons result in unexpected functions of polymers, such as self-healing and shape-shifting behaviors. This review focuses on how the microscopic dynamics of these molecular components initiate the reversible macroscopic deformation of the corresponding polymer materials upon external stimuli. The self-healing and shape-shifting materials are discussed in terms of the subtle molecular design, dynamic reversible mechanisms, and critical roles of the dynamic components in building these materials. Furthermore, this review puts forward the challenges and opportunities for the field of dynamic polymers in both aspects of fundamental chemistry and material fabrication. We hope this review can provide new inspiration for the development of this particular research field.
动态化学是指一类基础科学，涉及对化学体系的反应动力学、运动动力学或结构动力学进行精确构建或调控。在化学家的精心设计下，纳米级动力学，无论是分子层面还是超分子层面的，都能被放大至宏观动力学性质。例如，聚合物骨架在刺激作用下发生的构象或构型变化会导致聚合物产生意想不到的功能，如自愈和形状转变行为。本综述聚焦于这些分子组分的微观动力学如何在外部刺激下引发相应聚合物材料的可逆宏观形变。从精细的分子设计、动态可逆机制以及动态组分在构建这些材料中的关键作用等方面对自愈和形状转变材料进行了讨论。此外，本综述在基础化学和材料制备两个方面都提出了动态聚合物领域所面临的挑战和机遇。我们希望本综述能为这一特定研究领域的发展提供新的灵感。
