separation and other applications
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United States of America Patent
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May 28, 2013
Grant Date -
Oct 29, 2009
app pub date -
Aug 5, 2005
filing date -
Aug 5, 2004
priority date (Note) -
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Abstract
Polymerizable ionic liquid monomers and their corresponding polymers (poly(ionic liquid)s) are created and found to exhibit high CO2 sorption. The poly(ionic liquid)s have enhanced and reproducible CO2 sorption capacities and sorption/desorption rates relative to room-temperature ionic liquids. Furthermore, these materials exhibit selectivity relative to other gases such as nitrogen, methane, and oxygen. They are useful as efficient separation agents, such sorbents and membranes. Novel radical and condensation polymerization approaches are used in the preparation of the poly(ionic liquids).
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