Comparación de afinidad por superficies grafénicas de bolaanfífilos con diversos núcleos aromáticos
Archivos
NO SE HA AUTORIZADO la consulta de los documentos asociados
Fecha
2019-07-09
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Jaén: Universidad de Jaén
Resumen
[ES] En el presente trabajo, se estudia la funcionalización no-covalente de superficies grafénicas mediante la adsorción de tres compuestos orgánicos con estructura de "bolaanfífilos" que poseen un núcleo central aromáticos conectado a dos brazos laterales hidrofílicos. El núcleo aromático es diferente para cada uno de los bolaanfífilos, mientras que los brazos laterales son iguales para los tres. El objetivo es comparar capacidad de los tres núcleos aromáticos para formar enlaces no-covalentes con superficies grafénicas. Para ello se lleva a cabo un estudio de adsorción individual de cada uno de los tres bolaanfífilos sobre G-MWCNT. A partir de estos datos se llega a la conclusión de que el núcleo aromático que contiene un anillo de s-tetrazina sustituido con dos grupos benzamida es superior en afinidad por las superficies grafénicas que los otros dos sistemas aromáticos empleados.
[EN]This work deals with the non-covalent functionalization of graphene surfaces by absorption of three different organic compound with structure of bolaamphiphiles. These organic compounds are made of a central aromatic nucleus connected to two hydrophilic lateral arms. The aromatic nucleus is different for each of the three bolaanphiphiles, while the hydrophilic arms are the same in all the three case. Our aim is to compare the ability of the three different aromatic nuclei to form non-covalent bonds with graphene surfaces. For that, a study on the adsorption of each individual bolaamphiphile on G-MWNCT was performed, so that the maximum adsorption capacity was determined for each bolaanphiphile. We conclude that the aromatic nucleus with structure of s-tetrazine bearing two benzamide substituents possesses a higher affinity for graphene surfaces than the other two aromatic nuclei, one based on a 5-nitrosopyrimidine unit and the other based on a naphthalenediimide moiety.
[EN]This work deals with the non-covalent functionalization of graphene surfaces by absorption of three different organic compound with structure of bolaamphiphiles. These organic compounds are made of a central aromatic nucleus connected to two hydrophilic lateral arms. The aromatic nucleus is different for each of the three bolaanphiphiles, while the hydrophilic arms are the same in all the three case. Our aim is to compare the ability of the three different aromatic nuclei to form non-covalent bonds with graphene surfaces. For that, a study on the adsorption of each individual bolaamphiphile on G-MWNCT was performed, so that the maximum adsorption capacity was determined for each bolaanphiphile. We conclude that the aromatic nucleus with structure of s-tetrazine bearing two benzamide substituents possesses a higher affinity for graphene surfaces than the other two aromatic nuclei, one based on a 5-nitrosopyrimidine unit and the other based on a naphthalenediimide moiety.