Feasibility of the Simultaneous Determination of Monomer Concentrations and Particle Size in Emulsion Polymerization Using in Situ Raman Spectroscopy.
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Authors
Houben, Claudia
Nurumbetov, Gabit
Haddleton, David
Lapkin, Alexei A
Abstract
An immersion Raman probe was used in emulsion copolymerization reactions to measure monomer concentrations and particle sizes. Quantitative determination of monomer concentrations is feasible in two-monomer copolymerizations, but only the overall conversion could be measured by Raman spectroscopy in a four-monomer copolymerization. The feasibility of measuring monomer conversion and particle size was established using partial least-squares (PLS) calibration models. A simplified theoretical framework for the measurement of particle sizes based on photon scattering is presented, based on the elastic-sphere-vibration and surface-tension models.
Description
Keywords
Raman spectroscopy, online monitoring, particle size, vibration of elastic sphere, emulsion polymerization
Journal Title
Ind Eng Chem Res
Conference Name
Journal ISSN
0888-5885
1520-5045
1520-5045
Volume Title
54
Publisher
American Chemical Society (ACS)
Publisher DOI
Sponsorship
European Commission (280827)
The research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (EC FP7) Grant Agreement n. [NMP2-SL-2012-280827] and Engineering and Physical Sciences Research Council under grant EP/L003309/1.