期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 9, 页码 2638-2643出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201811341
关键词
cage compounds; gas separation; interfaces; membranes; organic solvent nanofiltration
资金
- Center for Understanding and Control of Acid Gas-Induced Evolution of Materials for Energy (UNCAGE-ME), an Energy Frontier Research Center - U.S. Department of Energy (US DoE), Office of Science, Basic Energy Sciences (BES) [DE-SC0012577]
- National Science Foundation [ECCS-1542174]
- US Department of Energy Office of Fusion Energy Science [DE-AC05-00OR22725]
- UT-Battelle LLC
Porous organic cages (POCs) are individual soluble, porous molecules. When fabricated into mixed-matrix membranes (MMMs), the soluble POC molecules have the potential to exhibit intimate molecular-level mixing with the polymer matrix. POCs have only recently been incorporated into mixed matrix membrane materials, but this process has not yet resulted in significant improvements of membrane performance. Now, vertex-functionalized amorphous scrambled porous organic cages (ASPOCs) have been utilized as membrane performance enhancers and the amorphous ASPOC mixtures are observed to distribute throughout the matrix without any indication of particle formation or agglomeration, creating unique, molecularly mixed composite membranes. Overall, the molecularly mixed composite membrane provide significant increases in both membrane permeability and selectivity, offering new avenues for creation of membranes with unique properties in industrially relevant separations.
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