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Optimization of batch polymerization processes—narrowing the MWD. I. Model simulation
Author(s) -
Louie Brian M.,
Soong David S.
Publication year - 1985
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.1985.070300915
Subject(s) - molar mass distribution , polymerization , solvent , methyl methacrylate , monomer , materials science , polymer chemistry , solvent effects , radical polymerization , chemical engineering , chemistry , polymer , organic chemistry , composite material , engineering
Several control strategies for the free‐radical polymerization of methyl methacrylate are analyzed with a detailed constitutive model incorporating the gel and glass effects. Optimal temperature history, photoinitiation intensity variation, and programmed monomer and solvent additions, employed alone and in combination, represent cases simulated by this model. Solvent addition is selected for further experimental studies, due to some attractive features. The product molecular weight distribution is narrowed, while the molecular weight averages are maintained high. Model predictions of the solvent injection history exhibit a strong sensitivity to the constitutive equations for describing the gel and glass effects.