Gas Transport through PEO-Containing Glassy Polymer Membranes

Abstract

Membrane-based gas separation is actually developing industrial membrane separation technologies, and the market size and number of applications served are expanding because it offers a number of advantages in terms of energy and capital cost. Current membrane-based gas processes and potential applications include hydrogen separation and recovery from ammonia purge gas, refinery, and syngas stream in the petrochemical industry. Other applications include carbon dioxide separation from flue gas in power plants, natural gas processing, and landfill gas upgrading. In this work, polysulfone-co-poly(ethylene oxide) random copolymer membranes were prepared by varying molar ratio of PEO segments and molecular weight of PEG segments, and their gas separation performances were explicitly discussed in terms of structure-property correlation between gas permeability and selectivity. Keywords: Membrane, Gas Separation, PSF-PEO Copolymers