The object of this work was to study the transport properties of the polymer membranes containing high content of ionic liquids. Previously, we studied polymer membranes based on poly(vinylidenefluoride-co-hexafluoropropylene) containing 1-ethyl-3-methyl-imidazolium bis(trifluoromethylsulphonyl)imide up to 80 wt.%. Obtained results revealed a strong dependence of the overall performance of these ionic liquid rich membranes on the ionic liquid content and a significantly higher permeability and sorption of vapors of organic compounds and CO2 in comparison with other permanent gases. Very interesting selectivities, namely for the couple CO2/H2, suggests a high potential in industrially relevant application fields for targeted gas or vapor separations [1,2].Therefore, such concept was applied on the other polymers with suitable properties (high permeability or selectivity) with the aim to enhance their separation performance. Sorption and permeation experiments were performed at 298.15K using a gravimetrical method (McBain spiral balance) and a time-lag permeation method.Acknowledgement:The financial support from the Grant Programme of the Czech Ministry of Education, Youth and Sports (project LH14006) and the Czech Grant Agency (project 14-12695S) is greatly appreciated.References:(1) J.C. Jansen, K. Friess, G. Clarizia, J. Schauer, P. Iz�k, Macromolecules 2011  , 44, 39-45(2) K. Friess, J.C. Jansen, F. Bazzarelli, P Iz�k, V. Jarmarov�, M. Kac�rkov�, J. Schauer, G.    Clarizia, P. Bernardo, J. Membr. Sci. 2012  , 415, 801-809

Gas and vapor separation by high ionic liquid content polymer membranes

248th National Meeting (2014)

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