Selective CO2 capture in an imine linked porphyrin porous polymer

A new microporous imine-linked porous porphyrin polymer, CuPor-BPDC, has been solvothermally synthesized. The CuPor-BPDC showed high CO2 capture (5.5 wt% at 273 K/1 bar) and very good selectivity for CO2/CH4 adsorption (5.6) at 1.0 bar and 273 K, and exhibited a BET surface area of 442 m2 g−1 with high thermal stability (up to 400 °C), thus showing good potential for CO2 capture.