Abstract

Triptycene-based microporous polymer was functionalized with thioamide moieties via postpolymerization. Gas adsorption experiments indicate that the modification leads to a reduction in the BET surface area of the polymer, from 1640 m2 g−1 for the parent TMP to 207 m2 g−1; however, the resulting microporous polymer still possesses high H2 uptake capacity, reaching 101.1 cm3 g−1 (0.9 wt %) at 1.0 bar and 77 K, along with relatively high selectivity toward CO2 over CH4 and N2.

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