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PEG‐Imbedded PEO Membrane Developed by a Novel Highly Efficient Strategy Toward Superior Gas Transport Performance
Author(s) -
Quan Shuai,
Tang Yu Pan,
Wang Zhen Xing,
Jiang Zai Xing,
Wang Rong Guo,
Liu Yu Yan,
Shao Lu
Publication year - 2015
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201400633
Subject(s) - membrane , peg ratio , ethylene glycol , chemical engineering , gas separation , permeability (electromagnetism) , polyethylene glycol , materials science , ethylene oxide , selectivity , microstructure , polymer chemistry , polymer , chemistry , organic chemistry , composite material , copolymer , catalysis , biochemistry , finance , engineering , economics
Low‐molecular‐weight poly(ethylene glycol) (PEG) is deliberately incorporated into synthesized swellable poly(ethylene oxide) (PEO) membranes via a facile post‐treatment strategy. The membranes exhibit both larger fractional free volume (FFV) and a higher content of CO 2 ‐philic building units, resulting in significant increments in both CO 2 permeability and CO 2 /H 2 selectivity. The separation performance correlates nicely with the microstructure of the membranes. This study may provide useful insights in the formation and mass transport behavior of highly efficient polymeric membranes applicable to clean energy purification and CO 2 capture, and possibly bridge the material‐induced technology gap between academia and industry.