Polymers of Intrinsic Microporosity Containing [2.2]Paracyclophane Moieties: Synthesis and Gas Sorption Properties

The unique structure of [2.2]paracyclophane (PCP) with its rigidity, stability, and planar chirality has gained significant attention in polymer and material research. In this work, the incorporation of amino‐functionalized PCPs within polymers of intrinsic microporosity (PIMs) is reported for the first time. Three different PCP‐PIMs were prepared via a Tröger's base formation mechanism, and their structures characterized via solid‐state NMR, MALDI‐TOF, and SEM. Their porosity was evaluated using gas adsorption (N 2 and CO 2 ) based on theoretical calculations such as Brunauer–Emmett–Teller (BET), NLDFT pore size distribution (PSD) and ideal IAST CO 2 /N 2 selectivity (15/85), a crucial separation when considering the capture of CO 2 from flue gas. The surface areas were found to be between 200–230 m 2 g −1 while the selectivity for CO 2 /N 2 ranged from 46 to 70.