In the present work, potential of polyPOSS-imide membranes designed for purification H2 from a coke gas (utilized in steelmaking industry) is investigated. Aiming at upscaling membrane fabrication, tubular single-channel and multi-channel were prepared, using polyhedral oligomeric silsesquioxane (POSS) nanostructures 6FDA as reactive precursors. The separation performance has been investigated ...