Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 25, Pages 10478-10484Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja304879c
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Funding
- U.S. Department of Energy, Advanced Research Projects Agency-ENERGY
- Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering
- National Natural Science Foundation of China [20990224, 21076071]
- National High Technology Research and Development Program of China [2008AA062302]
- 111 Project of China [B08021]
- Fundamental Research Funds for the Central Universities of China
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A general strategy for the synthesis of porous, fluorescent, triazine-framework-based membranes with intrinsic porosity through an aromatic nitrile trimerization reaction is presented. The essence of this strategy lies in the use of a superacid to catalyze the cross-linking reaction efficiently at a low temperature, allowing porous polymer membrane architectures to be facilely derived. With fiinctionalized triazine units, the membrane exhibits an increased selectivity for membrane separation of CO2 over N-2. The good ideal CO2/N-2 selectivity of 29 +/- 2 was achieved with a CO2 permeability of 518 +/- 25 barrer. Through this general synthesis protocol, a new class of porous polymer membranes with tunable functionalities and porosities can be derived, significantly expanding the currently limited library of polymers with intrinsic microporosity for synthesizing functional membranes in separation, catalysis, and energy storage/conversion.
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