Modeling of Polymerization Kinetics and Molecular Weight Development in the Microwave-Activated Nitroxide-Mediated Radical Polymerization of Styrene

Calculations of the polymerization rate and molecular weight development in the nitroxide‐mediated radical polymerization (NMRP) of styrene (STY), using hydroxyl‐TEMPO and dibenzoyl peroxide (BPO), and activated by microwave irradiation (MI), are presented. The calculations are based on a kinetic mo...

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Bibliographic Details
Published in:Macromolecular reaction engineering 2009-03, Vol.3 (2-3), p.101-107
Main Authors: Hernández-Meza, Jorge J., Jaramillo-Soto, Gabriel, García-Morán, Pedro R., Palacios-Alquisira, Joaquín, Vivaldo-Lima, Eduardo
Format: Article
Language:English
Subjects:
kinetics (polym.)
living polymerization
microwave irradiation
modeling
nitroxide-mediated radical polymerization (NMRP)
polystyrene (PS)
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Summary:Calculations of the polymerization rate and molecular weight development in the nitroxide‐mediated radical polymerization (NMRP) of styrene (STY), using hydroxyl‐TEMPO and dibenzoyl peroxide (BPO), and activated by microwave irradiation (MI), are presented. The calculations are based on a kinetic model developed in our group. Microwave activation is modeled by three approaches: microwave‐activated production of free radicals from monomer molecules, microwave‐enhanced thermal initiation, and microwave‐enhanced dormant polymer activation. The results obtained are compared against experimental data from the literature. The first approach is the most adequate. The NMRP of STY using TEMPO, BPO, and conductive heating, and the NMRP of STY activated by MI, without initiator, are also analyzed as reference cases.
ISSN:1862-832X
1862-8338
DOI:10.1002/mren.200800046