Free Volume and Gas Permeation in Anthracene Maleimide-Based Polymers of Intrinsic Microporosity

Khan, M.M.; Filiz, V.; Emmler, T.; Abetz, V.; Koschine, T.; Raetzke, K.; Faupel, F.; Egger, W.; Ravelli, L.

Journalpaper

Free Volume and Gas Permeation in Anthracene Maleimide-Based Polymers of Intrinsic Microporosity

Abstract

High free-volume copolymers were prepared via polycondensation with 2,3,5,6,-tetrafluoroterephthalonitrile (TFTPN) in which a portion of the 3,3,3',3'-tetramethyl-1,1'-spirobisindane (TTSBI) of PIM-1 was replaced with dibutyl anthracene maleimide (4bIII). An investigation of free volume using positron annihilation lifetime spectroscopy (PALS), and gas permeation measurements was carried out for the thin film composite copolymer membranes and compared to PIM-1. The average free volume hole size and the gas permeance of the copolymer membranes increased with decreasing TTSBI content in the copolymer.

DOI Link to Publication

URL: https://publications.hereon.de/id/32961/
Authors:Khan, M.M., Filiz, V., Emmler, T., Abetz, V., Koschine, T., Raetzke, K., Faupel, F., Egger, W., Ravelli, L.
Year:2015
In: Membranes
Volume:5
Issue:2
Pages:214 - 227
Publisher:MDPI, Basel
Type:Journalpaper
ISSN: 2077-0375
Cite as: Khan, M.M.; Filiz, V.; Emmler, T.; Abetz, V.; Koschine, T.; Raetzke, K.; Faupel, F.; Egger, W.; Ravelli, L.: Free Volume and Gas Permeation in Anthracene Maleimide-Based Polymers of Intrinsic Microporosity. In: Membranes. Vol. 5 (2015) 2, 214 - 227. (DOI: 10.3390/membranes5020214)