In line monitoring of residual monomer by NIR spectroscopy during styrene-divinylbenzene solution polymerization reactions

Dennis Chicoma Lara, María Verónica Carranza Oropeza, Leandro Gonçalves De Aguiar, Reinaldo Giudici

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Resumen

In this work, the sensitivity of NIR spectroscopy was studied for in-line, in-situ monitoring of residual monomer concentrations in solution copolymerization of styrene and divinylbenzene (S-DVB). Reactions were carried out in a glass reactor (stirred tank) to gather data used to develop a NIR calibration model. Experimental data were collected via off-line measurements of monomer conversion by gravimetry and they were previously validated with a kinetic model of the process. These data were correlated with the NIR spectra collected by an immersion probe (transflectance mode) during the reaction at the same sampling times. Spectral changes in the ranges 4460-4750 cm-1 and 6212-6187 cm-1 were related to the variations of monomer concentration. The results show good agreement between the experimental data and in-line monitoring predictions from the NIR spectra and the calibration model.

Idioma originalInglés
Título de la publicación alojadaMaterials Engineering and Sciences Division - Core Programming Topic at the 2011 AIChE Annual Meeting
EditorialAIChE
Páginas1071-1076
Número de páginas6
ISBN (versión impresa)9781618397294
EstadoPublicada - 2011
EventoMaterials Engineering and Sciences Division - Core Programming Topic at the 2011 AIChE Annual Meeting - Minneapolis, Estados Unidos
Duración: 16 oct. 201121 oct. 2016

Serie de la publicación

NombreMaterials Engineering and Sciences Division - Core Programming Topic at the 2011 AIChE Annual Meeting
Volumen2

Conferencia

ConferenciaMaterials Engineering and Sciences Division - Core Programming Topic at the 2011 AIChE Annual Meeting
País/TerritorioEstados Unidos
CiudadMinneapolis
Período16/10/1121/10/16

Nota bibliográfica

Publisher Copyright:
© 2018 Materials Engineering and Sciences Division - Core Programming Topic at the 2011 AIChE Annual Meeting. All rights reserved.

Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.

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