Effect of additives on the properties and performance of cellulose acetate derivative membranes in the separation of isopropanol/water mixtures

► The separation factor decreased with the increase in the additive content. ► The permeation flux increased with the increase in the additive content. ► The PEG/CA blend membrane showed high stability up to 305 °C. ► The addition of glycols additives in CA lowered the Tg of CA blend membranes. ► The additives improved the mechanical properties of membranes.