Cu(i) stabilizing crosslinked polyethyleneimine

Alireza Movahedi, Angelica Lundin, Nina Kann, Magnus Nydén*, Kasper Moth-Poulsen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)
29 Downloads (Pure)


Polyethyleneimine (PEI) is known for its metal-coordinating properties and in its crosslinked form has applications in different areas ranging from drug delivery to waste water treatment and recovery of trace metals. With the aim to regulate the coordination environment of Cu(i) and Cu(ii) ions in marine coatings, we have prepared a triazole cross-linking agent with 'soft' coordination that can crosslink PEI via indirect reductive amination. We have shown that this triazole crosslinker not only increases the Cu(ii) absorption capacity of the crosslinked PEI in comparison to the traditionally used glutaraldehyde-crosslinked PEI (PEI-GA), but also allows the crosslinked polymer network to stabilize the Cu(i) oxidation state more effectively. The Cu(ii) uptake and Cu(i) stabilization of the polymer have been determined by elemental analysis and UV-vis spectroscopy. It was found that the triazole-crosslinked polymer (PEI-TA) could coordinate up to 12 wt% of Cu(ii) before and 6 wt% Cu(ii) after imine reduction.

Original languageEnglish
Pages (from-to)18327-18336
Number of pages10
JournalPhysical Chemistry Chemical Physics
Issue number28
Publication statusPublished - 28 Jul 2015
Externally publishedYes

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Copyright the Publisher 2015. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.


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