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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Mathematical Modeling of the Stabilizer-Free Dispersion Copolymerization of Styrene and Maleic Anhydride: Particle Growth

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Autor(es):
Torraga, Maria G. F. [1] ; Giudici, Reinaldo [1]
Número total de Autores: 2
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Dept Chem Engn, Escola Politecn, Av Prof Luciano Gualberto Travessa 3, BR-05508010 Sao Paulo, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: MACROMOLECULAR REACTION ENGINEERING; SEP 2020.
Citações Web of Science: 0
Resumo

A model is proposed for particle growth in the stabilizer-free dispersion copolymerization of styrene (ST) and maleic anhydride (MAH). The model is based on the assumptions that 1) polymerization occurs in both the continuous phase and the polymer particles, 2) the nucleation step is fast, and the number of polymer particles is fixed during the process, 3) the particle population is monodisperse, 4) the propagation step between ST and MAH follows the terminal model, and 5) the termination step is diffusion-controlled, causing an autoacceleration effect in the process. The model predicts the global conversion, copolymer composition and the polymer particle diameter during time. The validation data are obtained experimentally by stabilizer-free dispersion copolymerization and the model predictions are in good agreement with the experimental data. (AU)

Processo FAPESP: 15/50684-9 - Sustainable gas pathways for Brazil: from microcosm to macrocosm
Beneficiário:Reinaldo Giudici
Linha de fomento: Auxílio à Pesquisa - Temático