التفاصيل البيبلوغرافية
| العنوان: |
Chitin based hybrid composites reinforced with graphene derivatives: a nanoscale study |
| المؤلفون: |
González, Joaquín Antonio, Villanueva, María Emilia, Peralta Ramos, María Luz, Pérez, Claudio Javier, Piehl, Lidia Leonor, Copello, Guillermo Javier |
| بيانات النشر: |
Royal Society of Chemistry |
| المجموعة: |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
| مصطلحات موضوعية: |
Chitin, Graphene Oxide, Reinforcement, Saxs, https://purl.org/becyt/ford/2.10, https://purl.org/becyt/ford/2 |
| الوصف: |
In this work, we present two novel nanostructured hybrid materials based on a chitin matrix loaded with increasing amounts of graphene oxide and reduced graphene oxide nanosheets (nGO and rGO, respectively). Both kinds of material (Chi:nGO and Chi:rGO) were studied using different spectroscopic and rheological techniques with the aim of understanding the interaction mechanism between chitin and nGO/rGO and explaining how the type of filler and its proportion affects its reinforcement. The production of these hybrids represents not only the obtention of low-cost materials with mechanical resistance but also a good opportunity for developing materials with several applications according to their composition. The nGO and rGO were characterised through FT-IR and ESR for the determination of the oxidation degree of each nanofiller. Then, the hybrids were spectroscopically analysed with FT-IR, ESR and SAXS which demonstrated that the components do not interact through covalent bonding and the nanosheets are well-dispersed among the chitin matrix. Finally, a rheological behavior assay was performed and its results were analysed in terms of G′ and η*. In short, all the results allowed us to conclude that nGO acts as a more efficient reinforcer than rGO due to the higher amount of hydrogen bonding established with chitin. ; Fil: González, Joaquín Antonio. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química Analítica Instrumental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco (i); Argentina ; Fil: Villanueva, María Emilia. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química Analítica Instrumental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y ... |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| تدمد: |
2046-2069 |
| Relation: |
info:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/content/articlelanding/2015/ra/c5ra13563j; http://hdl.handle.net/11336/6593; González, Joaquín Antonio; Villanueva, María Emilia; Peralta Ramos, María Luz; Pérez, Claudio Javier; Piehl, Lidia Leonor; et al.; Chitin based hybrid composites reinforced with graphene derivatives: a nanoscale study; Royal Society of Chemistry; RSC Advances; 5; 78; 7-2015; 63813-63820 |
| الاتاحة: |
http://hdl.handle.net/11336/6593 |
| Rights: |
info:eu-repo/semantics/openAccess ; https://creativecommons.org/licenses/by-nc/2.5/ar/ |
| رقم الانضمام: |
edsbas.E940A762 |
| قاعدة البيانات: |
BASE |