Fluoro‐PolyHIPEs with porous structure exhibit an excellent weather resistance for adsorption, separation or catalyst support applications in extreme environments, however, the specific surface area still needs to be improved. In this study, a porous fluorinated material is prepared by using high internal phase emulsion template method, and the porous structure of fluoro‐PolyHIPE (F‐PolyHIPE) is subsequently excavated and modified by the hypercrosslinking “knitting” method. The “knitting” of micropores in the pore walls of the fluoropolymer is achieved through the Friedel‐Crafts alkylation reaction by using dimethoxymethane (FDA) as the external crosslinker. It transforms the macroporous fluoropolymer prepared based on HIPE emulsion template method into hierarchical porous fluoro‐PolyHIPE (HCPF‐PolyHIPE) with a high specific surface area. The specific surface area of the porous fluorinated material demonstrates an increment from 15.6 m2 g−1 to 353.2 m2 g−1 after hypercrosslinking. Owing to the introduction of the micropores and mesopores as well as the enrichment of the fluorine atoms in the polymer network, HCPF‐PolyHIPE can be successfully applied for CO2 adsorption, thus, representing a major achievement of the study. Moreover, HCPF‐PolyHIPE exhibits excellent thermal stability as well as acid and alkali resistance, thus, confirming potential application prospects in the fields of oil‐water separation and gas adsorption.

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In this study, a novel strategy is utilized to prepare colored aluminum pigments with smart and optimal alkali resistance by in situ growth of multilayer composite nanomaterials on aluminum powders. A layer of a metal−organic framework (MOF) is constructed on the aluminum pigments by an in situ electrostatic self-assembly process. Copper-based metal−organic frameworks (CuMOFs) with excellent adsorption properties are utilized as nanocontainers for loading corrosion inhibitors (benzotriazole). The aluminum powder with the CuMOF functional layer (Al@CuMOF) has smart anticorrosion performance and vibrant colors. The MOF functional layer evenly releases benzotriazole to protect the aluminum powders from corrosive environments. Furthermore, the poly(trifluoroethyl methacrylate) layer with uniformity and denseness is tightly coated on the MOF functional layer to increase weatherability. The electrochemical impedance spectroscopy demonstrated that the highest impedance of the multifunction aluminum powders was as high as 7.23 × 10 5 Ω cm 2 , indicating excellent and durable chemical stability.