Feasibility of the Simultaneous Determination of Monomer Concentrations and Particle Size in Emulsion Polymerization Using in Situ Raman Spectroscopy | Zendy

Claudia Houben | Zendy; Gabit Nurumbetov | Zendy; David M. Haddleton | Zendy; Alexei A. Lapkin | Zendy

Open Access

Feasibility of the Simultaneous Determination of Monomer Concentrations and Particle Size in Emulsion Polymerization Using in Situ Raman Spectroscopy

Author(s) -

Claudia Houben,

Gabit Nurumbetov,

David M. Haddleton,

Alexei A. Lapkin

Publication year - 2015

Publication title -

industrial and engineering chemistry research

Language(s) - English

Resource type - Journals

eISSN - 1520-5045

pISSN - 0888-5885

DOI - 10.1021/acs.iecr.5b02759

Subject(s) - monomer , raman spectroscopy , emulsion polymerization , particle size , copolymer , particle (ecology) , emulsion , materials science , calibration , polymerization , analytical chemistry (journal) , surface tension , chemistry , chemical engineering , polymer chemistry , polymer , chromatography , optics , thermodynamics , composite material , organic chemistry , physics , oceanography , statistics , mathematics , geology , engineering

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.

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