Abstract:
Covalent organic frameworks (COFs) are a class of porous crystalline organic polymers based on covalent bonds, which show excellent potential in many applications due to their structural diversity and rich functionalization sites. However, the insufficient chemical stability of reversible-covalent-bond-based COFs limits their usage in different fields. Vinylene-linked COFs (V-COFs) with the construction of C=C double bonds become highly focused due to their improved chemical stability. This review aims at summarizing the preparation methods and corresponding applications of V-COFs, analyzing the progress of V-COFs, and further prospecting the future development of V-COFs.