Novel nanoporous Gl-POSS-branched polymers based on the macroinitiator of anionic nature. 2. 4-toluene diisocyanate. and octaglycidyl polyhedral oligomeric silsesquioxane (Gl-POSS) were obtained as gas separation membranes. https://www.chiggate.com/willow-hybrid-tree-sale/