%0 journal article
%@ 0887-6266
%A Koschine, T.,Raetzke, K.,Faupel, F.,Khan, M.M.,Emmler, T.,Filiz, V.,Abetz, V.,Ravelli, L.,Egger, W.
%D 2015
%J Journal of Polymer Science  B
%N 3
%P 213-217 
%R doi:10.1002/polb.23616
%T Correlation of gas permeation and free volume in new and used high free volume thin film composite membranes
%U https://doi.org/10.1002/polb.23616
3 
%X Polymeric gas separation membranes frequently undergo the phenomenon of aging, that is, performance parameters like permeability decrease with storage or usage time. Here, we report on a new approach of reducing aging by incorporation of functionalized multiwalled carbon nanotubes into a polymer of intrinsic microporosity. Free volume and permeability measurements clearly show a reduced aging with incorporation of the carbon nantubes.