Preparation, morphology and gas permeation properties of carbon dioxide-selective vinyl acetate-based Polymer/Poly(ethylene oxide-b-amide 6) blend membranes

New CO2-selective vinyl acetate (VAc)-based polymer/Pebax 1657 blend membranes were prepared by solution casting method. Blending Pebax with VAc/dibutyl maleate copolymer can be considered as an appropriate strategy to prepare CO2/CH4 selective membranes.121