Synthesis and Gas Transport Properties of Copolymers of Polybenzodioxane PIM-1 and Tetrahydroxyanthracene

New film-forming copolymers PIM-1 with 2,3,6,7-tetrahydroxy-9,10-(p-fluorophenyl)anthracene units in the main chain have been synthesized and investigated. The investigated gas separation characteristics of these copolymers show that despite a decrease in permeability, the copolymer containing 20% tetrahydroxyanthracene is a highly selective material that goes beyond the upper bounds in Robeson’s plots as compared to the initial PIM-1.