Please use this identifier to cite or link to this item:
Title: Effect of end groups and grafting on the CO2 separation performance of poly(ethylene glycol) based membranes
Authors: Xia, J.
Liu, S. 
Chung, T.-S. 
Issue Date: 11-Oct-2011
Citation: Xia, J., Liu, S., Chung, T.-S. (2011-10-11). Effect of end groups and grafting on the CO2 separation performance of poly(ethylene glycol) based membranes. Macromolecules 44 (19) : 7727-7736. ScholarBank@NUS Repository.
Abstract: Rubbery membranes have attracted significant attention for the CO 2/light gas separation due to their relative high permeability and high solubility selectivity. This work reports universal strategies to tailor CO2 permeability and CO2/light gas permselectivity via blending or grafting of poly(ethylene glycol) (PEG) derivatives into or onto organic-inorganic membrane (OIM) substrates. A PEG derivative is blended into the substrate which contains inorganic siloxane networks and poly(ethylene oxide) segments followed by thermal grafting. Ultrahigh CO2 permeability (982 barrer at 45 °C) is achieved via physical blending, while extremely high CO2 permeability (1840 barrer at 45 °C) is obtained after chemical grafting. Neither of these two modification methods shows the loss of CO2/H2 and CO2/N2 selectivity compared to the substrate. Melting and crystallization behaviors of this PEG derivative are believed to significantly affect the overall gas permeation performance. All the features make these OIMs promising membrane materials for CO2 capture. © 2011 American Chemical Society.
Source Title: Macromolecules
ISSN: 00249297
DOI: 10.1021/ma201844y
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Dec 10, 2018


checked on Dec 10, 2018

Page view(s)

checked on Nov 16, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.