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Issue 7, 2017
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Aromatic-rich hydrocarbon porous networks through alkyne metathesis

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Purely hydrocarbon-based porous polymers have generally been prepared through various irreversible transition metal-catalyzed cross-coupling reactions forming C–C bonds. Herein, we report an alternative synthetic approach, namely reversible alkyne metathesis, for the preparation of ethynylene-linked porous polymers. Planar and tetrahedral-shaped monomers were explored to construct poly(aryleneethynylene) (PAE) networks. We systematically varied the size of the monomers and studied the structure–property relationships. The resulting polymers exhibit high Brunauer–Emmett–Teller (BET) surface areas in the range of 736 m2 g−1 to 2294 m2 g−1. The advantages of such aromatic-rich PAE networks are their lightweight, high thermal/chemical stabilities, and superior hydrophobicity, which are beneficial for their application in adsorption/separation of toxic organic pollutants from water. We found that PAEs can adsorb a significant amount of common aromatic solvents, e.g. up to 723 wt% of nitrobenzene. Our study thus demonstrates an encouraging novel approach to prepare purely hydrocarbon-based porous materials.

Graphical abstract: Aromatic-rich hydrocarbon porous networks through alkyne metathesis

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The article was received on 14 Dec 2016, accepted on 08 Feb 2017 and first published on 09 Feb 2017

Article type: Research Article
DOI: 10.1039/C6QM00359A
Citation: Mater. Chem. Front., 2017,1, 1369-1372
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    Aromatic-rich hydrocarbon porous networks through alkyne metathesis

    H. Yang, Y. Zhu, Y. Du, D. Tan, Y. Jin and W. Zhang, Mater. Chem. Front., 2017, 1, 1369
    DOI: 10.1039/C6QM00359A

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