Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation

Chitin hybrid materials reinforced with graphene oxide nanosheets (nGO) have been prepared. The chitin : nGO ratio ranged from proportions where chitin was the main component to ones where nGO exceeded chitin. SEM and TEM images showed that high proportions of nGO may result in nanosheet association...

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Detalles Bibliográficos
Autores principales: González, J.A., Mazzobre, M.F., Villanueva, M.E., Díaz, L.E., Copello, G.J.
Formato: JOUR
Materias:
Chains
Graphene
Hybrid materials
Hydrogen bonds
Nuclear magnetic resonance spectroscopy
Reinforcement
FTIR
Graphene oxide nanosheets
Mechanical characterisation
Molecular bonds
Rheological behaviour
SEM and TEM
Solid state NMR
Structural rearrangement
Chitin
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_20462069_v4_n32_p16480_Gonzalez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_20462069_v4_n32_p16480_Gonzalez
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spelling todo:paper_20462069_v4_n32_p16480_Gonzalez2023-10-03T16:38:37Z Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation González, J.A. Mazzobre, M.F. Villanueva, M.E. Díaz, L.E. Copello, G.J. Chains Graphene Hybrid materials Hydrogen bonds Nuclear magnetic resonance spectroscopy Reinforcement FTIR Graphene oxide nanosheets Mechanical characterisation Molecular bonds Rheological behaviour SEM and TEM Solid state NMR Structural rearrangement Chitin Chitin hybrid materials reinforced with graphene oxide nanosheets (nGO) have been prepared. The chitin : nGO ratio ranged from proportions where chitin was the main component to ones where nGO exceeded chitin. SEM and TEM images showed that high proportions of nGO may result in nanosheet association. FTIR, 13C solid-state NMR and DSC analyses showed that the interaction among the components would not involve the formation of new molecular bonds. nGO was shown to act as a filler that induces structural rearrangements in chitin which lead to new hydrogen bonds among the chains. The mechanical stability proved to be higher when the nGO content in the hybrid was similar to or higher than that of chitin. The rheological behaviour of the material was shown to become more solid-like with increasing nGO content. The nGO did not interfere with lysozyme activity on chitin chains, indicating that these materials would be biodegradable. © 2014 the Partner Organisations. Fil:Mazzobre, M.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_20462069_v4_n32_p16480_Gonzalez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Chains
Graphene
Hybrid materials
Hydrogen bonds
Nuclear magnetic resonance spectroscopy
Reinforcement
FTIR
Graphene oxide nanosheets
Mechanical characterisation
Molecular bonds
Rheological behaviour
SEM and TEM
Solid state NMR
Structural rearrangement
Chitin
spellingShingle Chains
Graphene
Hybrid materials
Hydrogen bonds
Nuclear magnetic resonance spectroscopy
Reinforcement
FTIR
Graphene oxide nanosheets
Mechanical characterisation
Molecular bonds
Rheological behaviour
SEM and TEM
Solid state NMR
Structural rearrangement
Chitin
González, J.A.
Mazzobre, M.F.
Villanueva, M.E.
Díaz, L.E.
Copello, G.J.
Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation
topic_facet Chains
Graphene
Hybrid materials
Hydrogen bonds
Nuclear magnetic resonance spectroscopy
Reinforcement
FTIR
Graphene oxide nanosheets
Mechanical characterisation
Molecular bonds
Rheological behaviour
SEM and TEM
Solid state NMR
Structural rearrangement
Chitin
description Chitin hybrid materials reinforced with graphene oxide nanosheets (nGO) have been prepared. The chitin : nGO ratio ranged from proportions where chitin was the main component to ones where nGO exceeded chitin. SEM and TEM images showed that high proportions of nGO may result in nanosheet association. FTIR, 13C solid-state NMR and DSC analyses showed that the interaction among the components would not involve the formation of new molecular bonds. nGO was shown to act as a filler that induces structural rearrangements in chitin which lead to new hydrogen bonds among the chains. The mechanical stability proved to be higher when the nGO content in the hybrid was similar to or higher than that of chitin. The rheological behaviour of the material was shown to become more solid-like with increasing nGO content. The nGO did not interfere with lysozyme activity on chitin chains, indicating that these materials would be biodegradable. © 2014 the Partner Organisations.
format JOUR
author González, J.A.
Mazzobre, M.F.
Villanueva, M.E.
Díaz, L.E.
Copello, G.J.
author_facet González, J.A.
Mazzobre, M.F.
Villanueva, M.E.
Díaz, L.E.
Copello, G.J.
author_sort González, J.A.
title Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation
title_short Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation
title_full Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation
title_fullStr Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation
title_full_unstemmed Chitin hybrid materials reinforced with graphene oxide nanosheets: Chemical and mechanical characterisation
title_sort chitin hybrid materials reinforced with graphene oxide nanosheets: chemical and mechanical characterisation
url http://hdl.handle.net/20.500.12110/paper_20462069_v4_n32_p16480_Gonzalez
work_keys_str_mv AT gonzalezja chitinhybridmaterialsreinforcedwithgrapheneoxidenanosheetschemicalandmechanicalcharacterisation
AT mazzobremf chitinhybridmaterialsreinforcedwithgrapheneoxidenanosheetschemicalandmechanicalcharacterisation
AT villanuevame chitinhybridmaterialsreinforcedwithgrapheneoxidenanosheetschemicalandmechanicalcharacterisation
AT diazle chitinhybridmaterialsreinforcedwithgrapheneoxidenanosheetschemicalandmechanicalcharacterisation
AT copellogj chitinhybridmaterialsreinforcedwithgrapheneoxidenanosheetschemicalandmechanicalcharacterisation
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