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Synthesis of Calixarene-Based Porous Organic Framework(CalixPOF) in situ Solvent-Assisted Friedel-Crafts Coupling and Their Dye Adsorption Properties

DENG Wen-xiu;ZHANG Chao-liang;LIU Xi-kui;College of Polymer Science and Engineering,Sichuan University;West China Hospital of Stomatology,Sichuan University;  
Calixarene-based porous organic framework(CalixPOF)has been successfully synthesized by in situ solvent-assisted Friedel-Crafts coupling with 1,2-dichloroethane as solvent and coupling agent.The chemical component and molecular structure of CalixPOF were characterized by Fourier Transform Infrared Spectra(FT-IR)and solid-state Nuclear Magnetic Resonance spectroscopy(13C-NMR),which verified the reaction mechanism.The specific surface area,microstructure,thermal stability and dye adsorption efficiency of CalixPOF were investigated by nitrogen adsorption,Scanning Electron Microscopy(SEM),Thermogravimetry(TG)and Ultraviolet-visible spectrum(UV-vis).Results show that CalixPOF with good thermal stability and high specific surface area,selective adsorption to methylene blue dye,can be obtained in situ solvent-assisted Friedel-Crafts coupling.A new method for the synthesis of novel porous polymer networks with host-guest microcavities was provided.
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