(187x) Membrane-Based Ocean CO2 capture Using Poly (Arylene Ether Sulfone) Coated with Redox-Active Group

Ocean acidification, driven by CO₂ absorption and subsequent changes in ocean chemistry, poses a significant threat to marine ecosystems. To address this, we aim to fabricate redox-active coated membranes functionalized with carbonic anhydrase-like groups to enhance CO₂ and H₂O removal, using a backbone polymer which will be subjected to further modification through the addition of functionalities. The process begins with synthesizing allyl-modified poly(arylene ether sulfone) (PAES-co-APAES) copolymer, followed by post-polymerization modification to integrate these redox-active functionalities. Characterization techniques such as nuclear magnetic resonance (NMR) spectroscopy, differential scanning calorimetry (DSC), size exclusion chromatography (SEC) will confirm the polymer structure and molecular weight. The functionalized membranes will then be tested to evaluate their efficiency in shifting carbonate equilibrium for ocean water decarbonization. This work lays the foundation for advanced membranes capable of addressing carbon capture challenges through polymer materials and redox-mediated processes, contributing to ocean preservation.