Graphene hybrid materials? The role of graphene materials in the final structure of hydrogels
| Autor: | Cristina Martín, Sonia Merino, Alejandro Criado, Enrique Díez-Barra, Ester Vázquez, Ana Martín-Pacheco, Alicia Naranjo, M. Antonia Herrero |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Graphene Polyacrylamide Oxide Nanoparticle Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention Nanomaterials Hydrogel chemistry.chemical_compound chemistry law Quantum dot Self-healing hydrogels General Materials Science 0210 nano-technology Hybrid material |
| Zdroj: | Nanoscale RUIdeRA. Repositorio Institucional de la UCLM instname |
| ISSN: | 2040-3372 |
| Popis: | Graphene (G), graphene oxide (GO) and graphene quantum dots (GQDs) have been introduced into a three-dimensional polymeric network based on polyacrylamide in order to ascertain the role of each nanomaterial in hydrogels. The hydrogel structure is not affected by the introduction of GQDs, since these nanoparticles do not form part of the polymeric network. G and GO modify the structure of the hydrogels but in a different way. GO seems to interact by hydrogen bonding to form non-homogeneous gels in which the mechanical properties are not markedly improved. However, G takes an active part in the formation of the polymeric network, which leads to improved mechanical properties and stability of the final material to give rise to truly hybrid hydrogels and not mere two-phase composite materials. |
| Databáze: | OpenAIRE |
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