Fabrication and Characterization of Pebax®1657/PES Polymer Blend Membranes for CO2/CH4 Separation

چکیده مقاله

Blending of polymeric membrane is an advanced technique for gas separation. This work reports on the separation performance of a novel polymeric blend membrane based on poly(amide-b-ethylene oxide) and polyethersulfone blends. These flat sheet membranes were synthesized using solution-casting in different ratios (10-40%) in order to improve membrane separation performance of CO2/CH4. Prepared membranes were then characterized by Fourier Transformed Infra-Red Spectroscopy (FTIR). Permeabilities of pure gases (CO2 and CH4) were examined at room temperature. Results indicated that increasing wt.% PES in the Pebax®/PES blend membranes increased selectivity of CO2/CH4 and decreased pure gas permeabilities.