Modeling of the Production of Hydrogels from Hydroxyethyl Methacrylate and (Di)Ethylene Glycol Dimethacrylate in the Presence of RAFT Agents

The copolymerization kinetics of hydroxyethyl methacrylate (HEMA) with either ethylene glycol dimethacrylate (EGDMA) or diethylene glycol dimethacrylate (DEGDMA) in the presence of RAFT controllers is studied using a mathematical model recently developed in our group. The model is based on the conce...

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Bibliographic Details
Published in:Macromolecular reaction engineering 2014-08, Vol.8 (8), p.564-579
Main Authors: Espinosa-Pérez, Lizeth, Hernández-Ortiz, Julio César, López-Domínguez, Porfirio, Jaramillo-Soto, Gabriel, Vivaldo-Lima, Eduardo, Pérez-Salinas, Patricia, Rosas-Aburto, Alberto, Licea-Claverie, Angel, Vázquez-Torres, Humberto, Bernad-Bernad, Maria Josefa
Format: Article
Language:English
Subjects:
Antifreeze solutions
copolymerization
crosslinking
hydrogels
Mathematical models
polymer networks
Price increases
RAFT polymerization
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Summary:The copolymerization kinetics of hydroxyethyl methacrylate (HEMA) with either ethylene glycol dimethacrylate (EGDMA) or diethylene glycol dimethacrylate (DEGDMA) in the presence of RAFT controllers is studied using a mathematical model recently developed in our group. The model is based on the concept of multifunctional polymer molecules. The cases of conventional and controlled homopolymerizations of HEMA as well as the RAFT copolymerization of HEMA/EGDMA and HEMA/DEGDMA are addressed and are in good agreement with available experimental data. The bulk/solution version of the model is used as first approximation of the behavior of a RAFT dispersion copolymerization of HEMA/EGDMA carried out in supercritical carbon dioxide. The growth of hydrogels from HEMA and EGDMA (or DEGDMA) with controlled structures is studied with the aid of a comprehensive mathematical model previously developed by us. Bulk and solution copolymerizations are addressed and the bulk situation is used to approximate the behavior of a RAFT dispersion copolymerization of HEMA/EGDMA in scCO2.
ISSN:1862-832X
1862-8338
DOI:10.1002/mren.201300191