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DFO@EVOH and 3,4-HP@EVOH: Towards New Polymeric Sorbents for Iron(III)
- Source :
- Chemosensors, Vol 8, Iss 4, p 111 (2020)
- Publication Year :
- 2020
- Publisher :
- MDPI AG, 2020.
-
Abstract
- The paper presents the synthesis and preliminary characterization of two novel solid-phase sorbents for iron(III), resulting from the functionalization of ethylene-vinyl alcohol copolymer (EVOH) with deferoxamine, DFO (DFO@EVOH), and a novel tripodal 3-hydroxy-4-pyridinone, named 3,4-HP (3,4-HP@EVOH). DFO and 3,4-HP have been covalently bonded to EVOH, using carbonyldiimidazole as a coupling agent. Before their use as Fe(III) sorbents, they were warm-pressed to obtain a thin film. Polymers have been characterized by conventional physico-chemical techniques; furthermore, the sorption properties towards Fe(III) were investigated. The physico-chemical characterization of the new solid-state devices demonstrates the effective linkage of the two receptors on the polymeric support. Despite a relatively low sorption capacity for both materials, the stoichiometry and the complexation constants of Fe(III)/DFO@EVOH and Fe(III)/3,4-HP@EVOH are in pretty good agreement with those obtained for the same ligands in aqueous solutions.
Details
- Language :
- English
- ISSN :
- 22279040
- Volume :
- 8
- Issue :
- 4
- Database :
- Directory of Open Access Journals
- Journal :
- Chemosensors
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.71ed25af2eda4343984760da92700032
- Document Type :
- article
- Full Text :
- https://doi.org/10.3390/chemosensors8040111