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Nitrile Reduction Reverses the Micropollutant Uptake Selectivity of a Tetrafluoroterephthalonitrile-β-Cyclodextrin Polymer

preprint
submitted on 18.02.2019 and posted on 19.02.2019 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).

Funding

NSF CHE-1413862

SERDP ER18-1026

NSF CHE-1541820

NSF CHE-1048773

NSF ECCS-1542205

History

Email Address of Submitting Author

wdichtel@northwestern.edu

Institution

Northwestern University

Country

USA

ORCID For Submitting Author

0000-0002-3635-6119

Declaration of Conflict of Interest

Northwestern University and Cornell University have filed a patent application based on the results described in this article. D.E.H. and W.R.D. serve on the scientific advisory board and own equity and/or stock options in CycloPure, Inc., which is commercializing related cyclodextrin polymers.

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