Photoinduced Postsynthetic Polymerization of a Metal–Organic Framework toward a Flexible Stand‐Alone Membrane |
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| Authors: | Yuanyuan Zhang Dr. Xiao Feng Haiwei Li Yifa Chen Jingshu Zhao Shan Wang Lu Wang Prof. Dr. Bo Wang |
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| Affiliation: | Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081 (P.R. China) http://bowang.bit.edu.cn/english/index.htm |
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| Abstract: | Metal–organic frameworks (MOFs) are a promising class of nanoporous polymeric materials. However, the processing of such fragile crystalline powders into desired shapes for further applications is often difficult. A photoinduced postsynthetic polymerization (PSP) strategy was now employed to covalently link MOF crystals by flexible polymer chains, thus endowing the MOF powders with processability and flexibility. Nanosized UiO‐66‐NH2 was first functionalized with polymerizable functional groups, and its subsequent copolymerization with monomers was easily induced by UV light under solvent‐free and mild conditions. Because of the improved interaction between MOF particles and polymer chains, the resulting stand‐alone and elastic MOF‐based PSP‐derived membranes possess crack‐free and uniform structures and outstanding separation capabilities for CrVI ions from water. |
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| Keywords: | membranes metal– organic frameworks photochemistry polymerization separation capacity |
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