Abstract

A novel 3D ultramicroporous triptycene-based polyimide framework with high surface area (1050 m2 g−1) and high CO2 sorption capacity (3.4 mmol g−1 at 273 K and 1 bar), good CO2/N2 (45) and CO2/CH4 (9.6) selectivity was synthesized and characterized.

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