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Minimum‐time strategy to produce nonuniform emulsion copolymers. II. Open‐loop control
Author(s) -
Echevarria Antonio,
De La Cal Jose C.,
Asua Jose M.
Publication year - 1995
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.1995.070571007
Subject(s) - copolymer , emulsion , monomer , styrene , butyl acrylate , materials science , acrylate , kinetics , emulsion polymerization , polymer chemistry , process (computing) , chemical engineering , computer science , polymer , physics , composite material , engineering , quantum mechanics , operating system
An iterative approach was developed to determine the optimal monomer addition policies in real emulsion copolymerization systems in which only limited kinetic information is available. The approach was applied to obtain widely different copolymer composition profiles for the emulsion copolymerization of butyl acrylate and styrene. The approach involves a series of semicontinuous emulsion copolymerizations carried out in an openloop control mode. Each reaction was used to obtain an estimation of the kinetics of the process that was used to calculate the monomer addition profiles for the next experiment. The method is model‐independent and converges rapidly. © 1995 John Wiley & Sons, Inc.