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

Autor(es)

Torraga, Maria G. F. ^[1] ; Giudici, Reinaldo ^[1]

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

• Tipo de documento: Artigo Científico
• Fonte: MACROMOLECULAR REACTION ENGINEERING; v. 14, n. 5 OCT 2020.
• Citações Web of Science: 1

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
• Modalidade de apoio: Auxílio à Pesquisa - Temático