3 years ago

Synthesis and Characterization of Functional Triphenylphosphine-Containing Microporous Organic Polymers for Gas Storage and Separation

Synthesis and Characterization of Functional Triphenylphosphine-Containing Microporous Organic Polymers for Gas Storage and Separation
Jiawei Xu, Zhenyu Lei, Jia-Xing Jiang, Zexiong Qiu, Chong Zhang, Bing Chen, Feng Wang
Two kinds of novel triphenylphosphine-containing microporous organic polymers are designed and synthesized via palladium-catalyzed Sonogashira−Hagihara coupling condensation reaction of triphenylphosphine oxide- and sulfide-based monomers with different arylethynylene linkers. The gas adsorption isotherms reveal that these polymers have strong binding affinity for CO2 with high CO2 adsorption capacity, although they have moderate Brunauer−Emmett−Teller surface area ranging from 684 to 883 m2 g−1. Among the resulting polymers, triphenylphosphine oxide–tris(4-ethynylphenyl)amine exhibits the highest CO2 uptake capacity of 2.61 mmol g−1 at 273 K and 1.13 bar with relatively high gas selectivity of 60.2 for CO2 over N2 at 273 K. Two kinds of novel microporous organic polymers are designed and synthesized from triphenylphosphine derivatives of triphenylphosphine oxide (TBPPO) and triphenylphosphine sulfide with different triangular arylethynylene linkers. TBPPO-tris(4-ethynylphenyl)amine exhibit a high CO2 uptake capacity of 2.61 mmol g−1 at 273 K and 1.13 bar with exceptional gas selectivity of 60.2 for CO2 over N2.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/macp.201700275

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