title: Feasibility of the Simultaneous Determination of Monomer Concentrations and Particle Size in Emulsion Polymerization Using in Situ Raman Spectroscopy.
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.
authors.affiliation: Department of Chemical Engineering and Biotechnology, University of Cambridge , Pembroke Street, Cambridge CB2 3RA, U.K.
authors.forename: Claudia
authors.initials: C
authors.lastname: Houben
authors.affiliation: Department of Chemistry, University of Warwick , Gibbet Hill, Coventry CV4 7AL, U.K.
authors.forename: Gabit
authors.initials: G
authors.lastname: Nurumbetov
authors.affiliation: Department of Chemistry, University of Warwick , Gibbet Hill, Coventry CV4 7AL, U.K.
authors.forename: David
authors.initials: D
authors.lastname: Haddleton
authors.affiliation: Department of Chemical Engineering and Biotechnology, University of Cambridge , Pembroke Street, Cambridge CB2 3RA, U.K.
authors.forename: Alexei A
authors.initials: AA
authors.lastname: Lapkin