Metal-free and Scalable Synthesis of Porous Hyper-cross-linked Polymers: Towards Applications in Liquid-Phase Adsorption

ChemSusChem
Kai Schute, Marcus Rose

Abstract

A metal-free route for the synthesis of hyper-cross-linked polymers (HCP) based on Brønsted acids such as trifluoromethanesulfonic acid as well as H2 SO4 is reported. It is an improved method compared to conventional synthesis strategies that use stoichiometric amounts of metal-based Lewis acids such as FeCl3 . The resulting high-performance adsorbents exhibit a permanent porosity with high specific surface areas up to 1842 m(2)  g(-1) . Easy scalability of the HCP synthesis is proven on the multi-gram scale. All chemo-physical properties are preserved. Water-vapor adsorption shows that the resulting materials exhibit an even more pronounced hydrophobicity compared to the conventionally prepared materials. The reduced surface polarity enhances the selectivity in the liquid-phase adsorption of the biogenic platform chemical 5-hydroxymethylfurfural.

References

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Citations

Oct 11, 2016·Chemical Communications : Chem Comm·Mizuho YabushitaAlexander Katz
Feb 23, 2017·Chemical Society Reviews·Liangxiao Tan, Bien Tan
Mar 17, 2017·Annual Review of Chemical and Biomolecular Engineering·Hannah NguyenDionisios G Vlachos
Jul 6, 2019·Chemical Communications : Chem Comm·Cher Hon LauDaniel M Dawson
Jun 24, 2017·Chemical Communications : Chem Comm·Xiang ZhuSheng Dai
May 30, 2019·ACS Applied Materials & Interfaces·Alex M JamesRobert Dawson
Jul 7, 2020·Accounts of Chemical Research·Stefan J D SmithMatthew R Hill

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