不織布上へのポリイミド非対称膜の作製  [in Japanese] Preparation of Polyimide Asymmetric Membranes on the Nonwoven Fabric  [in Japanese]

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Author(s)

Abstract

The preparation conditions of polyimide (PI) asymmetric membranes on the nonwoven fabric have been investigated. The polyimide membranes were prepared by the phase inversion process in water coagulation bath using the casting solutions composed of polyimide, N, N'-dimethylacetamide (DMAc) as a rich solvent and 1, 4-dioxane (DOx) as a poor solvent. The N<SUB>2</SUB> permeability of polyimide membranes showed 10<SUP>-5</SUP>-10<SUP>-9</SUP> [mol/ (m<SUP>2</SUP>·s·Pa)]. It was found that polyimide membranes can be utilized as a supporting membrane. And, the polyimide membranes prepared from the casting solution of 25wt% polyimide, 56.3wt% DMAc and 18.7wt% dioxane showed high benzene permselectivity (α =30) for the benzene/ cyclohexane (50vol%/50vol%) solution at 30°C on pervaporation.

Journal

  • MEMBRANE

    MEMBRANE 26(3), 148-154, 2001-05-01

    THE MEMBRANE SOCIETY OF JAPAN

References:  17

Codes

  • NII Article ID (NAID)
    10008010616
  • NII NACSIS-CAT ID (NCID)
    AN0023215X
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    03851036
  • NDL Article ID
    5788512
  • NDL Source Classification
    ZR2(科学技術--生物学--生化学)
  • NDL Call No.
    Z18-1127
  • Data Source
    CJP  NDL  J-STAGE 
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