• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
Document
Author
Full name
Antonio César de Oliveira Intini
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2019
Supervisor
Committee
Giudici, Reinaldo (President)
Hirota, Wilson Hideki
Lona, Liliane Maria Ferrareso
Title in English
Modeling of polymerization of methyl methacrylate in homogeneous systems as a framework for processes improvements.
Keywords in English
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
Abstract in English
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.
Title in Portuguese
Modelagem da polimerização do metacrilato de metila em sistemas homogêneos como uma plataforma para melhorias de processos.
Keywords in Portuguese
Cinética química
Matlab
Metacrilato de metila
Método de momentos
Modelagem matemática
Polimerização
Polimerização isotérmica
Polimerização não isotérmica
Reator batelada
Reator semi-batelada
Abstract in Portuguese
Sem resumo.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2019-07-26
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2020. All rights reserved.