Despite the availability of a variety of skeletons for covalent organic frameworks (COFs), control of pore-surface wettability remains undeveloped, which could immensely expand their overall versatility. Herein, we contribute an effective strategy for imparting superwettability on COFs by chemically coating the pore surface with perfluoroalkyl groups to confer them with superhydrophobicity. Taking advantage of controllable modification, the resultant COFs retain the porosity and crystallinity of the pristine COFs. Benefiting from the bulk superhydrophobicity of the COF crystals and the feasibility of COF synthesis, they can be used as a coat or in situ integrated within various substrates; once applied, this renders them superhydrophobic. Given the modular nature, this protocol is compatible with the development of various specific wettabilities in COFs, which thereby constitutes a step for expanding the scope of COF applications and provides many opportunities for the processing of advanced materials and devices.

尽管共价有机骨架（COF）可以使用多种骨架，但对孔表面润湿性的控制仍未开发，这可能会极大地扩展其整体用途。在本文中，我们通过化学涂覆全氟烷基为孔表面赋予超疏水性，从而为在COF上赋予超润湿性做出了有效的策略。利用可控的改性，所得的COF保留了原始COF的孔隙率和结晶度。得益于COF晶体的整体超疏水性和COF合成的可行性，它们可以用作涂层或原位使用集成在各种基板中；一旦使用，这使它们具有超疏水性。鉴于模块性质，该协议与COF中各种特定润湿性的开发兼容，从而构成了扩展COF应用范围的步骤，并为先进材料和设备的加工提供了许多机会。