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Funcionalización de clics y patrones del grafeno por la reacción de Diels-Alder

Jing Li^1,2, Meng Li¹, Li-Li Zhou²

¹Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS) , Beijing 100190, P. R. China.

Journal of the American Chemical Society

|June 7, 2016

Resumen

Los investigadores desarrollaron una rápida reacción de clic de Diels-Alder para la funcionalización del grafeno utilizando cis-dienes. Este método permite la modificación controlada de la superficie y la creación de grafeno con patrones submicrométricos a temperatura ambiente.

Área de la Ciencia:

Ciencias de los materiales
Química orgánica
Química de las superficies

Sus antecedentes:

Las propiedades únicas del grafeno se pueden ajustar a través de la funcionalización química.
El control de las características superficiales del grafeno es crucial para aplicaciones avanzadas.
El desarrollo de métodos de funcionalización eficientes y precisos es un desafío continuo.

Objetivo del estudio:

Diseñar y utilizar cis-dienes para la decoración rápida de la superficie del grafeno.
Para lograr una funcionalización controlada y patronizada del grafeno.
Investigar el papel de la conformación molecular en la funcionalización del grafeno.

Principales métodos:

Síntesis de cis-dienos con esqueleto de dihidronaftaleno.
Reacción de clic de Diels-Alder (DA) para la funcionalización del grafeno.
Utilización de metacrilato polimetílico (PMMA) para el enmascaramiento y el patrón del grafeno.
Temperatura ambiente y condiciones de reacción a temperatura elevada.

Principales resultados:

Reacción DA rápida (aprox. 5 minutos) obtenidos debido a la cisconformación de dienes.
Se ha fabricado con éxito grafeno con patrón de resolución submicrométrica.
El grado de funcionalidad fue controlable mediante el ajuste de la temperatura de reacción.
Demostró el impacto significativo de la conformación molecular en la cinética de la reacción.

Conclusiones:

El diseño de cis-dieno permite una funcionalización de grafeno altamente eficiente y rápida.
El método desarrollado proporciona una ruta fácil al grafeno con patrones.
Este trabajo ofrece información valiosa sobre las relaciones estructura-reactividad en la química del grafeno.

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