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Contribution of Raman Spectroscopy to In Situ Monitoring of a High-Impact Polystyrene Process

Authors :
Laurent Falk
Marie-Claire Chevrel
Sandrine Hoppe
Patrice Bourson
Alain Durand
David Chapron
Nadège Brun
Laboratoire Matériaux Optiques, Photonique et Systèmes (LMOPS)
CentraleSupélec-Université de Lorraine (UL)
Laboratoire Réactions et Génie des Procédés (LRGP)
Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)
Laboratoire de Chimie Physique Macromoléculaire (LCPM)
Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)
Source :
Chemical Engineering and Technology, Chemical Engineering and Technology, Wiley-VCH Verlag, 2014, 37 (2), pp.275-282. ⟨10.1002/ceat.201300421⟩
Publication Year :
2014
Publisher :
HAL CCSD, 2014.

Abstract

International audience; A high-impact polystyrene (HIPS) process has been studied using Raman spectroscopy as a monitoring technique for the first time. Thermal polymerization of styrene was carried out in the presence of polybutadiene. A Raman probe with a short focal distance, immersed into the reaction medium, allowed in situ monitoring of styrene consumption over the whole reaction progress. A Raman probe with a long focal distance set outside the glass reactor was applied to detect phase separation and phase inversion. Finally, coupling Raman spectroscopy and flow rheometry into a single experimental setup allowed in situ monitoring of both phase behavior and viscosity variation during the HIPS process. Results obtained from Raman spectroscopy were correlated to those from laser granulometry and gravimetric analysis.

Details

Language :
English
ISSN :
09307516 and 15214125
Database :
OpenAIRE
Journal :
Chemical Engineering and Technology, Chemical Engineering and Technology, Wiley-VCH Verlag, 2014, 37 (2), pp.275-282. ⟨10.1002/ceat.201300421⟩
Accession number :
edsair.doi.dedup.....09170e6111b269b27917079edda81a2d
Full Text :
https://doi.org/10.1002/ceat.201300421⟩