Membrane and Water Treatment

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Effect of PTMGDA-PEGMA dopant on PVDF ultrafiltration membrane

  • Chen, Gui-E. (School of Chemical and Environmental Engineering, Shanghai Institute of Technology) ;
  • Huang, Hui-Hong (School of Chemical and Environmental Engineering, Shanghai Institute of Technology) ;
  • Xu, Zhen-Liang (State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology) ;
  • Zhang, Ping-Yun (State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology) ;
  • Wu, Wen-Zhi (School of Chemical and Environmental Engineering, Shanghai Institute of Technology) ;
  • Sun, Li (School of Chemical and Environmental Engineering, Shanghai Institute of Technology) ;
  • Liu, Yan-Jun (School of Chemical and Environmental Engineering, Shanghai Institute of Technology)
  • Received : 2015.10.24
  • Accepted : 2016.09.27
  • Published : 2016.11.25
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Abstract

As a novel hydrophobic monomer, polytetrahydrofuran diacrylate (PTMGDA) was synthesized by the esterification reaction between polyethylene tetrahydrofuran (PTMG) and acryloyl chloride (AC). In situ free radical polymerization reaction method was utilized to fabricate poly (vinylidene fluoride) (PVDF)-PTMGDA-poly(ethylene oxide) dimethacrylate (PEGMA) ulrafiltration (UF) membranes. The performances of PVDF-PTMGDA-PEGMA UF membranes in terms of morphologies, mechanical properties, separation properties and hydrophilicities were investigated. The introduction of the PTMGDA-PEGMA dopants not only increased the membranes' pure water flux, but also improved their mechanical properties and the dynamic contact angles. The addition of the PTMGDA/PEGMA dopants led to the formation of the finger-like structure in the membrane bulk. With the increase concentration of PTMGDA/PEGMA dopants, the porosity and the mean effective pore size increased. Those performances were coincide with the physicochemical properties of the casting solutions.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China, National Development and Reform Commission in China, Shanghai Committee of Science and Technology in China, Jiangsu Committee of Science and Technology in China

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