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Composition control in emulsion copolymerization. I. Optimal monomer feed policies
Author(s) -
Canu Paolo,
Canegallo Stefano,
Morbidelli Massimo,
Storti Giuseppe
Publication year - 1994
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.1994.070541214
Subject(s) - monomer , a priori and a posteriori , copolymer , polymer , partition (number theory) , composition (language) , interphase , constant (computer programming) , reactivity (psychology) , emulsion , chemistry , polymer chemistry , chemical engineering , mathematics , thermodynamics , computer science , organic chemistry , physics , combinatorics , engineering , medicine , philosophy , linguistics , alternative medicine , epistemology , pathology , biology , genetics , programming language
The problem of producing polymers with constant instantaneous composition in semibatch reactors has been addressed in the most general terms. A rigorous procedure for determining a priori the monomer feed policy that allows one to produce, with a minimum reaction time, a given amount of polymer, with constant instantaneous composition and complete monomer depletion, has been developed. The procedure involves the knowledge of only the monomer reactivity ratios and the interphase partition laws. Its practical implementation needs the on‐line monitoring of conversion. The reliability of the theoretical approach has been tested by comparison with the optimal policies obtained in the literature, for three different binary systems, as the result of various experimental iterative procedures. © 1994 John Wiley & Sons, Inc.