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Tecnologías de compartimentación mediante autoensamblaje y enlace cruzado de copolímeros de bloque aleatorio

Mayuko Matsumoto¹, Takaya Terashima¹, Kazuma Matsumoto¹

¹Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.

Journal of the American Chemical Society

|May 16, 2017

Resumen

Los investigadores crearon estructuras poliméricas únicas con compartimentos distintos utilizando autoensamblaje ortogonal y enlaces cruzados. Este método permite un control preciso de la arquitectura del polímero para los nanomateriales avanzados.

Área de la Ciencia:

Química de los polímeros
Ciencias de los materiales
Nanotecnología

Sus antecedentes:

Los copolímeros de bloque anfifílico son cruciales para la creación de nanoestructuras.
El control de la compartimentación dentro de las cadenas de polímeros individuales sigue siendo un desafío.

Objetivo del estudio:

Desarrollar un método para crear compartimentos bien definidos en cadenas únicas de polímeros y nanoagregados.
Sintetizar y caracterizar nuevos copolímeros anfifílicos de bloque aleatorio para el autoensamblaje a medida.

Principales métodos:

La polimerización de radicales vivos (LRP) y la postfuncionalización se utilizaron para sintetizar copolímeros de bloque aleatorio anfifílico.
Autoensamblaje ortogonal de segmentos hidrofóbicos (dodecilo, bencilo) en el agua.
El enlace cruzado intramolecular para formar nanoestructuras estables.
Utilizando un polímero reticulado como un macroiniciador para LRP para crear macromoléculas de renacuajo.

Principales resultados:

Se sintetizó con éxito un copolímero con polietileno glicol (PEG) hidrófilo y segmentos dodecilo y bencilo hidrofóbicos distintos.
Logró autoensamblaje ortogonal y enlaces cruzados intramoleculares, formando polímeros de una sola cadena con nanocompartimentos hidrofóbicos dobles.
Creó macromoléculas de renacuajo anfifílico que se auto-ensamblan en agregados multicompartamentos.

Conclusiones:

El enfoque desarrollado permite un control preciso de la formación de dominios hidrofóbicos discretos dentro de cadenas de polímeros individuales.
Esta estrategia proporciona una plataforma versátil para el diseño de complejas arquitecturas macromoleculares y nanoestructuras multicompartment.

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