Synthesis of solvent stable polymeric membranes via UV depth-curingElectronic supplementary information (ESI) available: A list of photoinitiators and cross-linkers used and composition of the synthesized membranes for all sets of experiments. See DOI: 10.1039/c3cc46795c

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. An easy and versatile method is presented to synthesize membranes by simple UV curing after careful selection of photoinitiators and cross-linking agents. This synthesis method is more environmentally friendly than other cross-linking methods and does not require any special functional groups on the used polymer.