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Title
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Enhanced CO₂ separation using PEBAX/PDDA blend membranes
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Type
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Presentation
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Keywords
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Gas separation, Membrane, PEBAX, CO2 separation
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Abstract
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This study focuses on the development and characterization of PEBAX-based membranes modified with poly(diallyldimethylammonium chloride) (PDDA) to enhance CO₂ separation performance. Membranes were fabricated by blending PEBAX-1657 with 10 wt% and 20 wt% PDDA using the solution casting method. Gas permeability measurements indicated that incorporating 10 wt% PDDA increased CO₂ permeability compared to pristine PEBAX, with improved CO₂/N₂ selectivity due to enhanced free volume and facilitated transport through amine functionality. However, at 20 wt% PDDA, reduced permeability was observed, attributed to increased crystallinity and reduced gas diffusivity and solubility.
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Researchers
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. . (Second Researcher), (First Researcher)
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