Polydimethylsiloxane (PDMS) membranes were fabricated using a new class of UV-curable PDMS (UV-PDMS) and conventional heat-curable PDMS (Heat-PDMS) materials for n-butanol recovery. In addition, mixed matrix membranes (MMMs) were prepared using silicalite-1 particles as a additive to improve the recovery efficiency of n-butanol. To understand the structure-performance relationship, the surface/cross-sectional morphology and roughness of the PDMS membranes and MMMs were characterized using SEM and AFM, respectively. Consequently, when 20 % of silicalite-1 particles was loaded, the UV-curable MMM exhibited 58 % increased flux with similar separation factor compared to the heat-curable MMM, which is attributed to enlarged the effective membrane surface area resulting from its unique morphology.

• 이주연(고려대학교 화공생명공학과, Department of Chemical & Biological Engineering, Korea University) | Ju Yeon Lee
• 신민규(고려대학교 화공생명공학과, Department of Chemical & Biological Engineering, Korea University) | Min Gyu Shin
• 이정현(고려대학교 화공생명공학과, Department of Chemical & Biological Engineering, Korea University) | Jung-Hyun Lee