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Investigation of permeability of fluorinated polycarbonate siloxanes

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Abstract

Mass transfer properties of fluorinated polycarbonate siloxanes (PCS-F) for some gases and hydrocarbons depending on the chemical nature of the carbonate and siloxane blocks and the composition of the block copolymers have been investigated. As compared with poly(dimethylsiloxane)s, polycarbonate siloxanes, and methyltrifluoropropylsiloxane homopolymers, fluorinated polycarbonate siloxanes exhibit a higher separation selectivity α for CO2/N2, CO2/O2, and CO2/CH4. At a 30 wt % concentration of trifluoropropyl groups, PCS-F have α values of 4.9 and 17.8 for O2/N2 and CO2/CH4, respectively. The PCS-F copolymers exhibit a high resistance to hydrocarbons, retaining the mechanical properties in the swollen state.

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Authors and Affiliations

  1. Lomonosov State University of Fine Chemical Technology, pr. Vernadskogo 86, Moscow, 119571, Russia

    D. O. Anashkin

  2. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow, 119991, Russia

    L. E. Strannikova

  3. Penta-91 Limited Liability Company, Volgogradskii pr. 43, Moscow, 109316, Russia

    V. M. Kopylov & I. M. Raigorodskii

Authors
  1. D. O. Anashkin
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  2. L. E. Strannikova
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  3. V. M. Kopylov
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  4. I. M. Raigorodskii
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Correspondence to D. O. Anashkin.

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Original Russian Text © D.O. Anashkin, L.E. Strannikova, V.M. Kopylov, I.M. Raigorodskii, 2013, published in Membrany i Membrannye Tekhnologii, 2013, Vol. 3, No. 1, pp. 13–19.

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Anashkin, D.O., Strannikova, L.E., Kopylov, V.M. et al. Investigation of permeability of fluorinated polycarbonate siloxanes. Pet. Chem. 53, 447–453 (2013). https://doi.org/10.1134/S0965544113070049

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  • DOI: https://doi.org/10.1134/S0965544113070049

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