Anchor installation on porous polymer networks (PPNs) for high CO2 uptake

Abstract

Porous polymer networks (PPNs) is an emerging category of advanced porous materials that are of interest for carbon capture due to their high physicochemical stability and convenient functionalization process. Herein, a series of alkylamine tethered PPN-200 (PPN-200-DETA, PPN-200-TETA and PPN-200-TAEA) were prepared through a novel post-synthetic strategy. Due to the presence of alkylamine groups, PPN-200-TAEA has CO2 uptakes of 42 cm3/g (at 298 K and 0.15 bar) and 55 cm3/g (at 298 K and 1 bar), and a calculated CO2/N2 selectivity of 289, which demonstrate its potential in postcombustion carbon capture application.