Modelling and Simulation of Complex Aspects of Multicomponent Emulsion Polymerization
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Notice bibliographique
Résumé
Abstract The focus of this work is the refinement of a general mechanistic simulator for multi‐component free radical emulsion polymerization. The effort includes three main areas of simulator development, namely, model development, database development and simulator verification. The model is general and can predict the dynamic evolution of emulsion polymerizations for a variety of monomer systems while giving the user as many “model options” as possible for fine tuning. The model has been extensively tested for several copolymerization systems including combinations of the monomers, styrene, methyl methacrylate, methyl acrylate, butyl acrylate, acrylonitrile, 2‐ehtyl hexyl acrylate and vinyl acetate. The simulator has been developed using a mechanistic framework that is analogous to the multicomponent free radical bulk and solution polymerization model developed in Gao and Penlidis (Citation1996&1998) and is a continuation of Gao and Penlidis (Citation[2002]), which explored emulsion homopolymerization and preliminary copolymerization modelling. The model includes a rigorous thermodynamic approach for determining monomer partitioning, the inclusion of both homogeneous and micellar particle nucleation as well as the ability to simulate various reactor configurations including batch and semi‐batch operation. Database items used in the simulator are chosen based on direct experimental data (when available) or from analogous situations and parameter estimations. The model has been developed in a general fashion such that a monomer, initiator, emulsifier, transfer agent etc. can be added to the database at any time. Furthermore, the model has been extended to predict particle size distribution of the resulting emulsion. This model has been tested with many case studies against a variety of experimental data and can be used for design of experiments for production of emulsions with customized distributions. #This paper is dedicated to Professor Gary W. Poehlein whose papers had always something new to teach us, both practical and theoretical. Acknowledgments Financial support from the Natural Sciences and Engineering Research Council (NSERC) of Canada, the Canada Research Chair (CRC) program, and ICI (Worldwide), is gratefully acknowledged. Also, many thanks (for invaluable discussions and years of mentorship) to Dr. Emmanuel Kontos of Uniroyal, USA (Crompton Corp.), a good friend and a good man who passed on in October 2002. Notes #This paper is dedicated to Professor Gary W. Poehlein whose papers had always something new to teach us, both practical and theoretical.
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Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle