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The Separation of Gases Using Conducting Polymer Films

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Intrinsically Conducting Polymers: An Emerging Technology

Part of the book series: NATO ASI Series ((NSSE,volume 246))

Abstract

We have recently reported a potentially useful application for conducting polymer films in the field of gas separations [1]. Here we report additional findings that show how selective control of gas permeability is facilitated by the doping, undoping and redoping process of emeraldine films. Specifically, permeability data for H2, He, CO2, O2, N2 and CH4 are given for films treated with varying concentrations of acid and base. There is a large decrease in gas permeation after fully doping the as-cast film. The permeability of the gases are increased when fully doped films are immersed in base to remove all dopant ions. Controlled redoping of the undoped films as a function of acid concentration results in large separation factors for the gas pairs H2/N2, He/N2, CO2/CH4 and O2/N2. These results are partially explained by a model based on size selective control of diffusion pathways. Here we include considerations of dopant induced enhancement of oxygen solubility in redoped membranes to further elucidate the mechanism behind large O2/N2 separation factors.

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Author information

Authors and Affiliations

  1. Electronic Materials and Device Research (MEE-11), Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA

    B. R. Mattes

  2. Department of Chemistry and Biochemistry, UCLA Solid State Science Center, University of California, Los Angeles, Los Angeles, California, 90024, USA

    M. R. Anderson, H. Reiss & R. B. Kaner

Authors
  1. B. R. Mattes
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  2. M. R. Anderson
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  3. H. Reiss
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  4. R. B. Kaner
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Editor information

Editors and Affiliations

  1. Champlain Cable Corporation, 12 Hercules Drive, 05446, Colchester, Vermont, USA

    M. Aldissi

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© 1993 Springer Science+Business Media Dordrecht

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Mattes, B.R., Anderson, M.R., Reiss, H., Kaner, R.B. (1993). The Separation of Gases Using Conducting Polymer Films. In: Aldissi, M. (eds) Intrinsically Conducting Polymers: An Emerging Technology. NATO ASI Series, vol 246. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1952-0_7

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  • DOI: https://doi.org/10.1007/978-94-017-1952-0_7

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-90-481-4316-0

  • Online ISBN: 978-94-017-1952-0

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