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Online monitoring of vinyl chloride polymerization in a microreactor using raman spectroscopy

Dorobantu, Ioana-Miruna and Prat, Laurent E. and Xuereb, Catherine and Gourdon, Christophe and Lasuye, Thierry Online monitoring of vinyl chloride polymerization in a microreactor using raman spectroscopy. (2012) Chemical Engineering & Technology - CET, vol. 35 (n° 4). pp. 705-712. ISSN 0930-7516

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Official URL: http://dx.doi.org/10.1002/ceat.201100564

Abstract

A novel capillary-based microfluidic device has been designed to follow the vinyl chloride polymerization reaction. The use of a co-flow generation system enabled obtaining monodisperse vinyl chloride droplets within 200 µm in diameter, each one being considered as a polymerization reactor. During polymerization VCM droplets were visualized with a high speed camera. At the end of the reaction PVC grains were observed with a Scanning Electron Microscopy technique. Real-time non-invasive Raman measurement has been performed on stationary vinyl chloride monomer droplets and has provided values of effective reaction orders n and effective rate constants k. This microdevice allowed the investigation in difficult conditions (pressure, temperature) with a minimal amount of reagents and consequently under safe conditions.

Item Type:Article
Additional Information:Thanks to Wiley editor. The definitive version is available at http://onlinelibrary.wiley.com/. The original PDF of the article can be found at Chemical Engineering & Technology website : http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1521-4125
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > INEOS (SWITZERLAND)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Laboratory name:
Laboratoire de Génie Chimique - LGC (Toulouse, France) - Réaction, mélange & séparation (RMS)
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Deposited By: Laurent PRAT

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