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BIBTEX RIS

Modeling molecular weight distribution in emulsion polymerization reactions with transfer to polymer

2001; Wiley; Volume: 39; Issue: 20 Linguagem: Inglês

10.1002/pola.10004

ISSN

1099-0518

Autores

Cláudia Sayer, Pedro Henrique Hermes de Araújo, Gurutze Arzamendi, José M. Asúa, Enrique Luis Lima, José Carlos Pinto,

Tópico(s)

Polymer crystallization and properties

Resumo

Abstract A mathematical model was developed for the computation of the dynamic evolution of molecular weight distributions (MWDs) during nonlinear emulsion polymerization reactions. To allow the direct computation of the whole MWD, an adaptive orthogonal collocation technique was applied. The model was validated with experimental methyl methacrylate/butylacrylate (BuA) semicontinuous and vinyl acrylate (VA)/Veova10 continuous emulsion polymerization results. Both systems considered introduce significant chain‐transfer reactions to polymer chains as a result of the presence of BuA and VA, respectively. The model developed was able to represent quite properly the kinetics and MWD of polymer samples during emulsion polymerizations. © 2001 John Wiley & Sons, Inc. J Polym Sci Part A: Polym Chem 39: 3513–3528, 2001

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