Abstract
Novel polypyrrole (PPy)/polydimethylsiloxane (PDMS) composite membrane was prepared by interfacial polymerization to make a very effective gas separation membrane. We found that Polymerized PPy films as thin as ∼200 nm could be chemically synthesized as freestanding membranes by using the interfacial polymerization technique. Additionally, we show that difference morphology of PPys films was obtained by controlling polymerization rate and more dense films were formed at low polymerization rate. Wide X-ray diffraction study showed the d spacing value of the PPy film decreased from 4.89 å to 3.67 å by the rate of polymerization decreases. According to d spacing value decrease, selectivity of a PPy composite membrane was increased dramatically and permeability was reduced gradually. This high selectivity was derived from d spacing closed to the kinetic diameter of nitrogen. These results indicated that the permeability is controlled by the diffusion coefficient, reflecting the packed structure of the PPy film. The highest selectivity value of composite membrane that was prepared by interfacial polymerization was O2/N2=17.2 and permeability for O2 was 40.2 barrer.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
Abelson, P. H., “Synthesis Membrane,”Science,244, 1421 (1989).
Cuenot, S., Demoustier-Champagne, S. and Nysten, B., “Elastic Modulus of Polypyrrole Nanotubes,”Phys. Rev. B.,85, 1690 (2000).
Delvaux, M., Duchet, J., Stavaux, P.-Y., Legras, R. and Demoustier-Champagne, S., “Chemical and Electrochemical Synthesis of Polyaniline Micro- and Nano-tubules,”Synth. Met.,113, 275 (2000).
Demoustier-Champagne, S. and Stavaux, P.-Y., “Effect of Electrolyte Concentration and Nature on the Morphology and the Electrical Properties of Electropolymerized Polypyrrole Nanotubules,”Chem. Mater.,11, 829 (1999).
Haggin, J., “Membranes Technology has Achieved Success, yet Lags Potential,”Chem. Eng. News,68, 22 (1990).
Henis, J. M. S. and Tripodi, M.K., “Novel Approach to Gas Separations using Composite Hollow Fiber Membranes,”Sep. Sci. Technol.,15, 1059 (1980).
Henis, J. M. S. and Tripodi, M.K., “Composite Hollow Fiber Membranes for Gas Separation: The Resistance Model Approach,”J. Membr. Sci.,8, 233 (1981).
Jasne, R. and Mark, H. F.,Encyclopedia of Polymer Science and Technology, Wiley, New York,13 (1988).
Kesting, R. E. and Fritzsche, A.K.,Polymeric Gas Separation Membranes, John Wiley & Sons, New York (1993).
Kesting, R. E.,Synthetic Polymeric Membranes; A Structural Perspective, John Wiley & Sons, New York (1985).
Kuwabata, S. and Martin, C.R., “Investigation of the Gas-transport Properties of Polyaniline,”J. Membr. Sci.,91, 112 (1994).
Lee, Y. M., Ha, S.Y., Lee Y.K., Suh, D.H. and Hong, S.Y., “Gas Separation through Conductive Polymer Membranes. 2. Polyaniline Membranes with High Oxygen Selectivity,”Ind. Eng. Chem. Res.,38, 1917 (1999).
Leroux, J. and Paul, D.D. R., “Modification of Asymmetric Polysulfone Membranes by Mild Surface Fluorination Part I. Transport Properties,”J. Membr. Sci.,94, 121 (1994).
Martin, C. R., Parthasarathy, R. V. and Menon, V. P., “Unusual Gas-Transport Selectivity in a Partially Oxidized Form of the Conductive Polymer Polypyrrole,”Chem. Mater.,9, 560 (1997).
Mitchell, G. R. and Geri, A., “Molecular Organisation of Electrochemically Prepared Conducting Polypyrrole Films,”J. Phys. D: Appl. Phys.,20, 1346 (1987).
Robeson, L. M., “Correlation of Separation Factor Versus Permeability for Polymeric Membranes,”J. Membr. Sci.,62, 165 (1991).
Spillman, R.W., “Economics of Gas Separation Membrane,”Chem. Eng. Prog.,85, 41 (1989).
Tian, G. and Zerbi, G., “Lattice Dynamics and Vibrational Spectra of Polypyrrole,”J. Chem. Phys.,92, 3886 (1990).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Son, WI., Hong, JM. & Kim, BS. Polypyrrole composite membrane with high permeability prepared by interfacial polymerization. Korean J. Chem. Eng. 22, 285–290 (2005). https://doi.org/10.1007/BF02701499
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02701499