Polyether-block-amide PEBA membranes for gas separation and pervaporation; current design and applications

Polyether-block-amide (PEBA) membranes have attracted considerable attention for their exceptional efficacy in gas separation and pervaporation processes. This comprehensive review delves into the precise definition, distinguishing characteristics, and diverse applications of PEBA membranes over the past five years. A primary research objective focuses on enhancing gas separation efficiency, primarily through augmenting membrane selectivity. Explorations include integrating nanoparticles and formulating blended systems comprising various liquids or polymers, all aimed at enhancing performance and selectivity within PEBA membranes. Prevalent membrane fabrication methodologies, including casting and electrospinning, prominently employ solvents such as butanol and ethanol. Notably, the focal point of gas separation research lies in the selective segregation of carbon dioxide (CO2) from other gases. An exhaustive evaluation of PEBA membrane permeability and selectivity concerning CO2 separation emerges as indispensable for its seamless integration into gas separation processes. Concurrently, pervaporation investigations encompass the partitioning of organic compounds, encompassing alcohols, from aqueous solutions. The ongoing trajectory of research and development in PEBA membrane technology portends significant promise in addressing pressing environmental challenges and propelling advancements across diverse industrial domains.