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Más allá de la dispersión: control determinista de la distribución del peso molecular del polímero
Dillon T Gentekos1, Lauren N Dupuis1, Brett P Fors1
1Cornell University , Ithaca, New York 14853, United States.
Journal of the American Chemical Society
|January 30, 2016
Resumen
Los investigadores desarrollaron un nuevo método para controlar con precisión las distribuciones de peso molecular del polímero (MWD) mediante la regulación del inicio de la reacción. Esto permite ajustar las propiedades del material ajustando la composición de MWD.
Área de la Ciencia:
- Química de los polímeros
- Ciencias de los materiales
Sus antecedentes:
- La distribución del peso molecular del polímero (MWD) tiene un impacto significativo en las propiedades del material.
- Los métodos sintéticos actuales carecen de un control preciso sobre la forma y la composición de MWD.
Objetivo del estudio:
- Desarrollar una estrategia modular para el control determinista sobre el MWD de polímeros.
- Permitir el ajuste de las propiedades del material mediante el control preciso de la composición de MWD.
Principales métodos:
- Utilización de la regulación temporal de la iniciación en la polimerización mediada por el óxido nitroso.
- Se utiliza una estrategia modular aplicable a las polimerizaciones controladas con iniciadores discretos.
Principales resultados:
- Se ha logrado un control determinista sobre el MWD de polímeros.
- Se ha demostrado la capacidad de adaptar con precisión la composición de MWD.
Conclusiones:
- La estrategia reportada ofrece un control preciso sobre el MWD de polímeros.
- Este método permite utilizar la composición MWD como parámetro ajustable para las propiedades del material.
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