Carbon Dioxide Permselectivity of Membranes of Copolymer of Vinyl Ether with a Tetraethylene Glycol Side Group and Vinyl Ether with a Methacrylate Side Group

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  • SAKAGUCHI Toshikazu
    Department of Materials Science and Engineering, Graduate School of Engineering, University of Fukui
  • KATSURA Fumiya
    Department of Materials Science and Engineering, Graduate School of Engineering, University of Fukui
  • HASHIMOTO Tamotsu
    Department of Materials Science and Engineering, Graduate School of Engineering, University of Fukui

Bibliographic Information

Other Title
  • テトラエチレングリコールとメタクリレートを有するビニルエーテルコポリマー膜の二酸化炭素透過選択性
  • テトラエチレングリコール ト メタクリレート オ ユウスル ビニルエーテルコポリマーマク ノ ニサンカ タンソ トウカ センタクセイ

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Description

Novel poly(vinyl ether)s with tetraethylene glycol and methacrylate side groups [poly(TetraEGMVE-VEEM)] were synthesized by the copolymerization of TetraEGMVE with VEEM. The free-standing membranes of poly(TetraEGMVE-VEEM)s were prepared by thermal crosslinking between the methacrylate units. Membranes of poly(TetraEGMVE-VEEM) with 2:1 composition ratio showed high CO2 permeability and CO2/N2 selectivity, whose PCO2 and PCO2/PN2 were 250 barrer and 52, respectively. The PCO2 of membranes of poly(TetraEGMVE-VEEM) with 4:1 composition ratio was 320 barrer, which is larger than that with 2:1 composition ratio. This difference is caused by the number of crosslinking points in the polymer matrix. The CO2 permeability of poly(TetraEGMVE-VEEM) is higher than that of poly(vinyl ether) having diethylene glycols as a side chain. This high permeability originates from the high diffusivity of CO2 in the membranes.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 71 (5), 258-260, 2014

    The Society of Polymer Science, Japan

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