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Una estrategia de clúster iónico para la mejora del rendimiento y el control de la morfología del producto en la
Chen Tan1, Chen Zou2, Changle Chen2
1Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, Anhui 230601, China.
Journal of the American Chemical Society
|January 24, 2022
Resumen
Una estrategia de racimo iónico controla la morfología del producto de poliolefina durante la síntesis de poliolefina funcionalizada polar. Este método mejora el rendimiento catalítico, la estabilidad térmica y permite el desarrollo de nuevos materiales.
Área de la Ciencia:
- Química de los polímeros
- Ciencias de los materiales
Sus antecedentes:
- El control de la morfología del producto es crucial en la producción de poliolefinas.
- Esto sigue siendo un desafío significativo en la copolimización del monómero etileno-polar.
Objetivo del estudio:
- Desarrollar una nueva estrategia para controlar la morfología del producto en la síntesis de poliolefinas polarizadas.
- Mejorar el rendimiento de la copolimerización catalítica y explorar nuevas aplicaciones de materiales.
Principales métodos:
- Utilizó una estrategia de racimo iónico en la polimerización por precipitación.
- Se investigó el impacto de los comonomeros a base de sales metálicas frente a las contrapartes de éster.
- Se utiliza un proceso en tándem que combina la prepolimerización y la posterior polimerización.
Principales resultados:
- Se ha conseguido un control efectivo de la morfología del producto.
- Actividades catalíticas mejoradas, pesos moleculares de copolímero y incorporación de comonomeros.
- Estabilidad térmica mejorada del catalizador (90-150 °C) y aplicabilidad a diversos sistemas.
- Sintetizó con éxito poliolefinas funcionalizadas y compuestos con propiedades mecánicas sintonizables.
Conclusiones:
- La estrategia de clúster iónico ofrece un enfoque versátil para el control de la morfología y la mejora del rendimiento en la síntesis de poliolefinas polarizadas.
- Los materiales desarrollados muestran potencial como agentes de compatibilización para mezclas de polímeros.
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