Ganesan, Kathirvel und Heyer, Markus und Ratke, Lorenz und Milow, Barbara (2018) Facile preparation of nanofibrillar networks of “ureido-chitin” containing chelating functional groups: ureido and amine. Chemistry - A European Journal. Wiley. doi: 10.1002/chem.201804405. ISSN 0947-6539.
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Offizielle URL: https://onlinelibrary.wiley.com/doi/pdf/10.1002/chem.201804405
Kurzfassung
Aerogels of polysaccharide with chelating functions can be useful as supports in many applications because of their hosting property. We demonstrate a facile method for the preparation of aerogels of chitosan derivative, “ureido‐chitin” containing ureido functional group. The nanofibrillar networks of “ureido‐chitin” were produced by the nucleophilic addition of amine groups of chitosan with in situ prepared isocyanic acid. The presence of ureido functional groups was confirmed by FT‐IR, solid state CP‐MAS 13C and 15N NMR. No crosslinking of molecular chains was observed. The maximum degree of ureido functional groups was estimated to be about 66%. Characterization by powder XRD confirmed that the polymer chains self‐assembled in a way how the chitin polymers orient themselves in a highly ordered crystalline structure. The nanofibrillar networks showed no solubility under aqueous acidic and alkaline conditions. Bio‐based hosting materials of this kind with two different hosting functional groups: ureido and amine can be potentially utilized for wide applications in aqueous medium including filters, catalysis and biomedicine.
elib-URL des Eintrags: | https://elib.dlr.de/122286/ | ||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||
Titel: | Facile preparation of nanofibrillar networks of “ureido-chitin” containing chelating functional groups: ureido and amine | ||||||||||||||||||||
Autoren: |
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Datum: | 16 Oktober 2018 | ||||||||||||||||||||
Erschienen in: | Chemistry - A European Journal | ||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||
DOI: | 10.1002/chem.201804405 | ||||||||||||||||||||
Verlag: | Wiley | ||||||||||||||||||||
Name der Reihe: | Wiley-VCH Publications | ||||||||||||||||||||
ISSN: | 0947-6539 | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | Aerogel; Chitin; Chitosan; Ureido; Gels | ||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
HGF - Programm: | Verkehr | ||||||||||||||||||||
HGF - Programmthema: | Verkehrssystem | ||||||||||||||||||||
DLR - Schwerpunkt: | Verkehr | ||||||||||||||||||||
DLR - Forschungsgebiet: | V VS - Verkehrssystem | ||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | V - Verkehrsentwicklung und Umwelt II (alt) | ||||||||||||||||||||
Standort: | Köln-Porz | ||||||||||||||||||||
Institute & Einrichtungen: | Institut für Werkstoff-Forschung > Aerogele | ||||||||||||||||||||
Hinterlegt von: | Ganesan, Dr. Kathirvel | ||||||||||||||||||||
Hinterlegt am: | 07 Nov 2018 10:40 | ||||||||||||||||||||
Letzte Änderung: | 06 Sep 2019 15:23 |
Verfügbare Versionen dieses Eintrags
- Facile preparation of nanofibrillar networks of “ureido-chitin” containing chelating functional groups: ureido and amine. (deposited 07 Nov 2018 10:40) [Gegenwärtig angezeigt]
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