Tailored Structure of the Separating Layer ina High-Performance Gas-Separation Membrane

摘要

State-of-the-art polymeric membranes for gas separation need a very thin effective separating layer - well below 0.1 um m - to make up for the modest permeability of gases in practical polymers and afford high permeation rate per nit of membrane area. The drive to an ever thinner separating layer introduces structural features that make the layer more complex than a simle, sully-relaxed dense slab of the same polymer.