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Una ruta directa a las nanoestructuras orgánicas cíclicas a través de la polimerización de la metátesis de anillo de

Andrew J Boydston¹, Thomas W Holcombe, David A Unruh

¹Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA.

Journal of the American Chemical Society

|April 2, 2009

Resumen

Los investigadores crearon nanoestructuras orgánicas cíclicas utilizando la polimerización por metástasis de anillo de expansión. Este método eficiente produce directamente anillos a nanoescala, confirmados como formas toroidales a través de imágenes AFM.

Área de la Ciencia:

Química de Polímeros La Química de Polímeros es la química de los polímeros.
Nanotecnología La nanotecnología es la nanotecnología.
Ciencia de los materiales Ciencia de los materiales.

Sus antecedentes:

Los polímeros cíclicos ofrecen propiedades únicas, pero son difíciles de sintetizar.
La polimerización por metástasis de expansión de anillo (ROMP) es una poderosa herramienta para la síntesis de polímeros.

Objetivo del estudio:

Desarrollar un método directo y eficiente para la síntesis de nanoestructuras orgánicas cíclicas.
Para caracterizar la morfología de las nanoestructuras resultantes.

Principales métodos:

La polimerización por metástasis de expansión de anillo (ROMP) de un macronomero norborneo dendronizado.
Microscopía de fuerza atómica (AFM) para el análisis estructural.

Principales resultados:

Síntesis exitosa de nanoestructuras orgánicas cíclicas en un solo paso.
Las imágenes del AFM revelaron nanoestructuras toroidales con diámetros de aproximadamente 35-40 nm.

Conclusiones:

La estrategia ROMP desarrollada es una ruta eficiente hacia las nanoestructuras orgánicas cíclicas.
Las nanoestructuras sintetizadas poseen morfologías toroidales bien definidas a nanoescala.

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