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Gas permeation and separation properties of polyimide/ZSM-5 zeolite composite membranes containing liquid sulfolane
S Kanehashi, H Gu, R Shindo, S Sato, T Miyakoshi, K Nagai
Journal of Applied Polymer Science | Published : 2013
DOI: 10.1002/app.38572
Abstract
The preparation, characterization, and gas permeation properties of novel composite membranes containing polyimide (PI), liquid sulfolane (SF), and zeolite (ZSM-5) were investigated to address the interface defects between the PI and the zeolite. The free-standing composite membranes were prepared by the solvent casting method. The gas permeability of the PI+ZSM-5 membrane was higher than that of PI, whereas its gas selectivity was significantly reduced, suggesting that these results are attributed to the interface defects. The CO2 selectivity of PI+ZSM-5+SF was higher than those of the PI+ZSM-5 membranes because of the introduction of liquid SF into the interface defects. Furthermore, liqui..
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Awarded by Japan Society for the Promotion of Science
Funding Acknowledgements
This research was partially supported by a Grant-in-aid for Scientific Research C (24560862) from the Ministry of Education, Culture, Sports, Science and Technology, Japan, the Japanese Society of the Promotion of Science, Research Project Grant B (3) from the Institute of Science and Technology, Meiji University, Japan, and Grant-in-Aid for the Japan Society for the Promotion of Science (JSPS) Fellows (2410856).