Porous cationic polymers: the impact of counteranions and charges on CO2 capture and conversion

Abstract

Porous cationic polymers (PCPs) with surface areas up to 755 m² g⁻¹ bearing positively charged viologen units in their backbones and different counteranions have been prepared. We have demonstrated that by simply varying counteranions both gas sorption and catalytic properties of PCPs can be tuned for metal-free capture and conversion of CO₂ into value-added products such as cyclic carbonates with excellent yields.