Tunable Supramolecular Cavities Molecularly Homogenized in Polymer Membranes for Ultraefficient Precombustion CO 2 Capture (Adv. Mater. 3/2022)

Molecular Sieves In article number 2105156, Tai-Shung Chung and co-workers show how soluble organic macrocyclic cavitands (OMCs) with interactive affinity for polymers can be utilized to design novel nanocomposite membranes with true molecular homogeneity, unlike conventional nanoarchitectures that form heterogeneous nanofiller phases within membranes that cause performance and processability issues. By adjusting the OMC cavity size within the membranes, tunable gas-transport properties can be obtained for molecular-sieving H2/CO2 separation.