Our project titled "Nanocomposite membranes of novel high-free volume polymers for separation of helium, nitrogen, CO2, and C2-C4 hydrocarbons from natural gas/biogas" is supported by the TÜBİTAK (The Scientific and Technological Research Council of Turkey) and RFBR (Russian Foundation for Basic Research) 2021 Joint Project Program. We will be collaborating with Prof. Dr. Alexander ALENTİEV's research group from Institute of Petrochemical Synthesis, RAS.