CO 2 Separation by Imide/Imine Organic Cages.
Sonia La CognataRiccardo MobiliChiara MilaneseMassimo BoiocchiMattia GaborardiDonatella ArmentanoJohannnes Carolus JansenMarcello MonteleoneAriana R AntonangeloMariolino CartaValeria AmendolaPublished in: Chemistry (Weinheim an der Bergstrasse, Germany) (2022)
Two novel imide/imine-based organic cages have been prepared and studied as materials for the selective separation of CO 2 from N 2 and CH 4 under vacuum swing adsorption conditions. Gas adsorption on the new compounds showed selectivity for CO 2 over N 2 and CH 4 . The cages were also tested as fillers in mixed-matrix membranes for gas separation. Dense and robust membranes were obtained by loading the cages in either Matrimid® or PEEK-WC polymers. Improved gas-transport properties and selectivity for CO 2 were achieved compared to the neat polymer membranes.