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In‐Line Monitoring of Size Distributions in Liquid‐Liquid Dispersions and Suspension Polymerizations by Focused Beam Reflectance Measurements
Author(s) -
Poblete Israel Bernardo,
Castor Carlos Alberto,
Nele Marcio,
Pinto José Carlos
Publication year - 2014
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201400017
Subject(s) - suspension (topology) , styrene , materials science , reflectivity , particle size distribution , particle size , polymerization , optics , beam (structure) , composite material , chemical engineering , physics , copolymer , mathematics , polymer , homotopy , pure mathematics , engineering
Summary This work studies the use of Focused Beam Reflectance Measurements (FBRM) for monitoring of size distributions in liquid‐liquid (styrene‐water) dispersions and styrene suspension polymerizations performed in stirred tanks. The effects of the suspending agent concentration, stirring rate and presence of external light sources on the FBRM performance were evaluated during the in‐line monitoring of average size chords and chord length distribution (CLD). It can be stated that FBRM is sensitive to variations of particle sizes and, therefore, that FBRM is suitable for evaluation of CLDs in real time in suspension polymerization systems.