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Mathematical Modeling of the Grafting of Maleic Anhydride onto Polypropylene

2007; Wiley; Volume: 259; Issue: 1 Linguagem: Inglês

10.1002/masy.200751340

1521-3900

Reinaldo Giudici,

Nanotechnology research and applications

Abstract Summary: A kinetic model for the free radical grafting of maleic anhydride (MAH) onto polypropylene (PP) was developed. The model is able to predict the effect of MAH and initiator concentrations on the grafting degree as well as the changes in the polymer molecular weight distribution during the grafting process. Simulation results are validated by comparison with data from different sources, showing that the model is able to represent reasonably the main trends of the experimentally measured variables both in batch (internal mixer, static film) and in continuous processing (twin‐screw extruder), under different conditions. Model predictions are also compared well with a Monte Carlo simulation previously presented in the literature for the same process.