Koschine, Toenjes; Rätzke, Klaus; Faupel, Franz; Khan, Muntazim Munir; Emmler, Thomas; Filiz, Volkan; Abetz, Volker; Ravelli, Luca; Egger, Werner
Document type:
Zeitschriftenartikel / Journal Article
Title:
Correlation of gas permeation and free volume in new and used high free volume thin film composite membranes
Journal:
Journal of Polymer Science, Part B: Polymer Physics
Volume:
53
Issue:
3
Year:
2015
Pages from - to:
213-217
Language:
Englisch
Keywords:
ageing ; membranes ; films
Abstract:
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.