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Effects of the nitrile group substitution on the gas separation properties of aromatic polyamide membranes

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Abstract

The effects of nitrile group substitution onto aromatic polyamide backbone on the gas permeability and permselectivity of the polymers are examined. The gas permeability of aromatic polyamides increase with increasing the content of nitrile group substitution, whereas the permselectivity decreases with increasing the nitrile group contents. The effects of chain linrearity on the permeability and permselectivity are also examined. The non-linearity of the polymers increases the permeability. These behaviors are interpreted in terms of chain packing and crystallinity of the aromatic polyamides.

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Authors and Affiliations

  1. Hyperstructured Organic Materials Research Center, and School of Materials Science and Engineering, Seoul National University, 151-742, Seoul, Korea

    Ho Seung Choi, Won Ho Jo, Tae Jin Oh, Yong Soo Kang & Hyun Chae Park

  2. Department of Dyeing and Finishing, Kyungpook National University, 702-701, Taegu, Korea

    Tae Jin Oh

  3. Division of Polymer, Korea Institute of Science and Technology, 136-791, Seoul, Korea

    Yong Soo Kang & Hyun Chae Park

Authors
  1. Ho Seung Choi
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  2. Won Ho Jo
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  3. Tae Jin Oh
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  4. Yong Soo Kang
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  5. Hyun Chae Park
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Correspondence to Won Ho Jo.

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Choi, H.S., Jo, W.H., Oh, T.J. et al. Effects of the nitrile group substitution on the gas separation properties of aromatic polyamide membranes. Fibers Polym 1, 111–115 (2000). https://doi.org/10.1007/BF02875194

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  • DOI: https://doi.org/10.1007/BF02875194

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