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Published on: March 21, 2014
Synthesis of solvent stable polymeric membranes via UV depth-curing
Izabela Strużyńska-Piron1, Johan Loccufier, Luc Vanmaele
1Centre for Surface Chemistry and Catalysis, KU Leuven, Kasteelpark Arenberg 23, PO Box 2461, 3001 Leuven, Belgium. ivo.vankelecom@biw.kuleuven.be.
Abstract:
Solvent stable polymeric membranes with morphologies ranging from highly porous to dense were prepared via UV curing using dedicatedly designed photopolymerizable compositions. To optimize the UV curing efficiency, various parameters including the photoinitiator type, cross-linker functionality, as well as membrane thickness were investigated. UV modified polysulfone membranes showed excellent solvent stability in addition to a 91% Rose Bengal (1017 Da) retention at a superior ethyl acetate permeance of 8 l m(-2) h(-1) bar(-1) in a typical solvent resistant nanofiltration (SRNF) experiment.
