DFO@EVOH and 3,4-HP@EVOH: Towards New Polymeric Sorbents for Iron(III)
| Autor: | Raffaela Biesuz, Camilla Zanoni, Maria Amelia Santos, Giancarla Alberti, Lisa Rita Magnaghi, Valeria Marina Nurchi |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
02 engineering and technology
010402 general chemistry 01 natural sciences Analytical Chemistry lcsh:Biochemistry chemistry.chemical_compound iron(III) sorbents Copolymer lcsh:QD415-436 Physical and Theoretical Chemistry deferoxamine chemistry.chemical_classification Aqueous solution ethylene-vinyl alcohol Sorption Polymer 021001 nanoscience & nanotechnology tris 3-hydroxy-4-pyridinone 0104 chemical sciences functionalized polymers chemistry Covalent bond Surface modification 0210 nano-technology Carbonyldiimidazole Stoichiometry Nuclear chemistry |
| Zdroj: | Chemosensors Volume 8 Issue 4 Chemosensors, Vol 8, Iss 111, p 111 (2020) |
| ISSN: | 2227-9040 |
| DOI: | 10.3390/chemosensors8040111 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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