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Photoinduced Postsynthetic Polymerization of a Metal–Organic Framework toward a Flexible Stand‐Alone Membrane
Author(s) -
Zhang Yuanyuan,
Feng Xiao,
Li Haiwei,
Chen Yifa,
Zhao Jingshu,
Wang Shan,
Wang Lu,
Wang Bo
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201500207
Subject(s) - nanoporous , polymerization , materials science , membrane , copolymer , monomer , polymer , covalent bond , metal organic framework , polymer chemistry , chemical engineering , nanotechnology , chemistry , organic chemistry , composite material , adsorption , biochemistry , engineering
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‐NH 2 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 Cr VI ions from water.