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Nitrile Reduction Reverses the Micropollutant Uptake Selectivity of a Tetrafluoroterephthalonitrile-β-Cyclodextrin Polymer
preprintsubmitted on 18.02.2019, 19:21 and posted on 19.02.2019, 17:13 by Max Justin Klemes, Yuhan Ling, Casey Ching, congyue wu, Leilei Xiao, Damian E Helbling, William Dichtel
A post-polymerization reduction of nitrile groups to primary amines reverses the selectivity of a crosslinked cyclodextrin polymer network. The as-polymerized material had previously been shown to have a high affinity for cationic organic micropollutants. The reduced polymer has a high affinity for anionic pollutants, including a broad range of per- and polyfluorinated alkyl substances (PFASs).