Premium
Modeling of the copolymerization, with depropagation, of α‐methyl styrene and methyl methacrylate at an elevated temperature
Author(s) -
Cheong Seong Ill,
Penlidis A.
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.20392
Subject(s) - copolymer , methyl methacrylate , styrene , reactivity (psychology) , polymer chemistry , kinetics , reaction rate constant , chemistry , molar ratio , batch reactor , materials science , thermodynamics , organic chemistry , polymer , catalysis , physics , medicine , alternative medicine , pathology , quantum mechanics
We propose a dynamic model for the copolymerization of α‐methyl styrene (α‐MS) and methyl methacrylate (MMA) in a batch reactor. The parameters are based on data from the literature and our own laboratories over the full conversion range. A two‐parameter model with constant reactivity ratios shows the most reasonable results. The dynamic model depicts the reaction kinetics and reactor behavior more clearly. Termination occurs mainly by the cross reaction of unlike radicals, and its rate increases with the molar ratio of α‐MS to MMA. The model enables us to predict the instantaneous and cumulative properties of the copolymer and also provides us with a basic tool for the optimization and control of industrial reactors. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 261–270, 2004