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Mémoire de Maîtrise
DOI
Document
Auteur
Nom complet
Antonio César de Oliveira Intini
Unité de l'USP
Domain de Connaissance
Date de Soutenance
Editeur
São Paulo, 2019
Directeur
Jury
Giudici, Reinaldo (Président)
Hirota, Wilson Hideki
Lona, Liliane Maria Ferrareso
Titre en anglais
Modeling of polymerization of methyl methacrylate in homogeneous systems as a framework for processes improvements.
Mots-clés en anglais
acrylic polymerization
azo-bisisobutironitrile
Batch reactor
Benzoyl peroxide
Coupled ordinary differential equations
dodecyl mercaptan
Glycol dimercapto acetate
isothermal polymerization
Matlab
Method of moments
Methyl methacrylate
Modeling
non-isothermal Polymerization
Optimization
Polymath
Semi-batch reactor
Resumé en anglais
The polymerization of methyl methacrylate (MMA) was investigated in this dissertation. Selected kinetic models from the literature were reviewed, and two new, generalized models of diffusion-limited effects (gel- and glass effects), derived from the current models were proposed and tested for bulk and solution polymerization of MMA in batch and semi-batch reactors, under isothermal and non-isothermal conditions. The newly proposed models include the capability of modeling termination by combination, radical transfer to monomer and depropagation reaction. The new and previous models were compared with experimental data of bulk and solution polymerizations of MMA, under a selection of non-steady state processes conditions (initiator and monomer feed, step changes in temperature) and compositions (initiator and chain transfer agents, regarding both type and dosages). The particular case of a non-isothermal bulk polymerization was also investigated. A simulation program (Reactormodel) was developed in Matlab, and its algorithm is provided.
Titre en portugais
Modelagem da polimerização do metacrilato de metila em sistemas homogêneos como uma plataforma para melhorias de processos.
Mots-clés en portugais
Cinética química
Matlab
Metacrilato de metila
Método de momentos
Modelagem matemática
Polimerização
Polimerização isotérmica
Polimerização não isotérmica
Reator batelada
Reator semi-batelada
Resumé en portugais
Sem resumo.
 
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Date de Publication
2019-07-26
 
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