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Dr. Jekaterina Jeromenok, Dr. Winfried Böhlmann, Prof. Dr. Christian Jäger and Dr. Jens Weber Carbon Dioxide Adsorption in Betulin-Based Micro- and Macroporous Polyurethanes ChemistryOpen 2

Version of Record online: 18 JAN 2013 | DOI: 10.1002/open.201200045

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Separation of CO2. Microporous polyurethane networks were prepared based on a renewable resource. Betulin, extracted from birch bark, is used as a structure-directing diol monomer in A3-B2 monomers. The resulting microporous networks show very promising CO2/N2 selectivities. The state of adsorbed CO2 is analyzed by in situ NMR spectroscopy, and pure physisorption is proven. The preparation of monolithic materials is demonstrated as well.

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