LAUSR

Here we present novel chemical sorbents based on polymers with intrinsic microporosity (PIM). For the first time, alkyl amines were incorporated in PIMs through an acid-base interaction to create a chemi-sorbent. The amine-appended PIM polymers not only showed a nearly four-fold enhancement in CO2 loading capacity (36.4 cc/g at 0.15 bar and 298 K) and very high CO2/N2 selectivity compared to neat PIM-1, but they also proved to have stable performance when cycled between adsorption and desorption under both dry and humid conditions that are typical for post-combustion CO2 capture.