Temperature and CO 2 responsive polyethylenimine for highly efficient carbon dioxide release
Post combustion carbon dioxide capture with aqueous polymer solutions is a field of major interest. Via acylation of commercially available polyethylenimine ( b -PEI) with butyric anhydride, lower critical solution temperature (LCST) behaviour together with a reversible pH shift was found in water a...
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| Veröffentlicht in: | RSC advances 2015, Vol.5 (13), p.9556-9560 |
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| container_title | RSC advances |
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| creator | Kainz, Johannes Werz, Patrick David Leonidas Troll, Carsten Rieger, Bernhard |
| description | Post combustion carbon dioxide capture with aqueous polymer solutions is a field of major interest.
Via
acylation of commercially available polyethylenimine (
b
-PEI) with butyric anhydride, lower critical solution temperature (LCST) behaviour together with a reversible pH shift was found in water as well as in CO
2
containing aqueous solutions. As expected, a low CO
2
absorption capability of the acylated thermosensitive
b
-PEI was measured in a stirred tank reactor. However, the observed improved CO
2
release in the desorption process associated with the LCST behaviour of the polymer is a “green” tool to face high efficiency loss in standard CO
2
capturing processes. |
| doi_str_mv | 10.1039/C4RA13710H |
| format | Article |
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Via
acylation of commercially available polyethylenimine (
b
-PEI) with butyric anhydride, lower critical solution temperature (LCST) behaviour together with a reversible pH shift was found in water as well as in CO
2
containing aqueous solutions. As expected, a low CO
2
absorption capability of the acylated thermosensitive
b
-PEI was measured in a stirred tank reactor. However, the observed improved CO
2
release in the desorption process associated with the LCST behaviour of the polymer is a “green” tool to face high efficiency loss in standard CO
2
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Via
acylation of commercially available polyethylenimine (
b
-PEI) with butyric anhydride, lower critical solution temperature (LCST) behaviour together with a reversible pH shift was found in water as well as in CO
2
containing aqueous solutions. As expected, a low CO
2
absorption capability of the acylated thermosensitive
b
-PEI was measured in a stirred tank reactor. However, the observed improved CO
2
release in the desorption process associated with the LCST behaviour of the polymer is a “green” tool to face high efficiency loss in standard CO
2
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Via
acylation of commercially available polyethylenimine (
b
-PEI) with butyric anhydride, lower critical solution temperature (LCST) behaviour together with a reversible pH shift was found in water as well as in CO
2
containing aqueous solutions. As expected, a low CO
2
absorption capability of the acylated thermosensitive
b
-PEI was measured in a stirred tank reactor. However, the observed improved CO
2
release in the desorption process associated with the LCST behaviour of the polymer is a “green” tool to face high efficiency loss in standard CO
2
capturing processes.</abstract><doi>10.1039/C4RA13710H</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2046-2069 |
| ispartof | RSC advances, 2015, Vol.5 (13), p.9556-9560 |
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| language | eng |
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| source | Royal Society Of Chemistry Journals 2008- |
| title | Temperature and CO 2 responsive polyethylenimine for highly efficient carbon dioxide release |
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