Nadège Brun, Itab Youssef, Marie-Claire Chevrel, David Chapron, Cornélius Schrauwen, Sandrine Hoppe, Patrice Bourson and Alain Durand In situ monitoring of styrene polymerization using Raman spectroscopy. Multi-scale approach of homogeneous and heterogeneous polymerization processes Journal of Raman Spectroscopy 44
Free radical polymerization of styrene was monitored in situ by combining Raman spectroscopy to other experimental techniques (gravimetry and rheology). Three different processes were investigated: bulk, emulsion and miniemulsion polymerization. A complete analysis of the evolution of Raman spectrum during the course of reaction showed that a lot of information about molecular dynamics could be extracted and related to chemical phenomena. In addition, we report for the first time the coupling of Raman spectroscopy to a rheometer in order to monitor styrene bulk polymerization both at the scale of chemical bonds and at the scale of macroscopic phenomena (viscosity variation).
Complete the form below and we will send an e-mail message containing a link to the selected article on your behalf