期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 36, 期 5, 页码 490-495出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201400633
关键词
cross-linking; gas separation; PEG-imbedded; PEO membranes; separation techniques
资金
- National Natural Science Foundation of China [21177032, U1462103]
- Program for New Century Excellent Talents in University [NCET-11-0805]
- Fundamental Research Funds for the Central Universities [HIT.BRETIV.201307]
- Harbin Science and Technology Innovation Talent Funds [2014RFXXJ028, 2012RFXXG091]
- State Key Laboratory of Urban Water Resource and Environment (Harbin Institute Technology) [2014DX05]
- Pre-research Fund Project of National Defense
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 CO2-philic building units, resulting in significant increments in both CO2 permeability and CO2/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 CO2 capture, and possibly bridge the material-induced technology gap between academia and industry.
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