Droudian A Youn SK Wehner LA Wyss RM Li M Park HG 2018 In chemical separation, thin membranes exhibit high selectivity, but often require a support at the expense of permeance. Here, we report a pinhole-free polymeric layer synthesized within freestanding carbon nanotube buckypaper through vapor-liquid interfacial polymerization (VLIP). The VLIP process results in thin, smooth and uniform polyamide and imide films. The scaffold reinforces the nanofilm, defines the membrane thickness, and introduces an additional transport mechanism. Our membranes exhibit superior gas selectivity and osmotic semipermeability. Plasticization resistance and high permeance in hydrocarbon separation together with a considerable improvement in water-salt permselectivity highlight their potential as new membrane architecture for chemical separation. https://sonar.ch/global/documents/272494 eng info:eu-repo/semantics/altIdentifier/doi/10.1021/acsami.8b02329 info:eu-repo/semantics/altIdentifier/pmid/29808667 ACS applied materials & interfaces. - 2018 carbon nanotube scaffold composite membrane desalination gas separation interfacial polymerization plasticization resistance thin selective layer Enhanced Chemical Separation by Freestanding CNT-Polyamide/Imide Nanofilm Synthesized at the Vapor-Liquid Interface. http://purl.org/coar/resource_type/c_6501