Tailoring 6FDA-based click cross-linked membranes: modular synthesis and tunable gas separation

Abstract

A click covalent cross-linking approach for polyimide membranes has been demonstrated. The cross-linked membranes particularly exhibit systematic changes in gas permeability for H₂ (30–237 Barrer) and CO₂ (13–199 Barrer) as well as in physical properties, depending on the thiol cross-linkers embedded.