On August 13, 2013, Lattuada, Marco; Del Gado, Emanuela; Abete, Tiziana; de Arcangelis, Lucilla; Lazzari, Stefano; Diederich, Vincent; Storti, Giuseppe; Morbidelli, Massimo published an article.Recommanded Product: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate) The title of the article was Kinetics of Free-Radical Cross-Linking Polymerization: Comparative Experimental and Numerical Study. And the article contained the following:
Modeling free radical polymerization processes in the presence of crosslinkers is a challenging problem that has been addressed using numerous techniques for over more than half a century. However, a model providing a comprehensive description of the phenomenon has not been proposed yet. In this work, we implement a simple free-radical polymerization scheme of a monovinyl (difunctional) monomer and a divinyl (tetrafunctional) crosslinker in a Monte Carlo (MC) scheme, which describes polymer dynamics using a bond-fluctuation model. MC simulations allow us to follow the entire polymerization kinetics and the formation of a percolating network (gel phase) by realistically taking into account diffusion limitations, to extract scaling information at the percolation threshold and to recover the distribution of number of monomer units between two successive fully crosslinked units, from which the extent of swelling can be computed. The predictions of MC simulations are also successfully compared to a kinetic model based on numerical fractionation, with kinetic constants used as fitting parameters. MC data and kinetic simulations are compared to some exptl. data on the swelling behavior of polyacrylamide hydrogels and of poly(Me methacrylate) (PMMA) gels, exhibiting good agreement. We conclude that the proposed MC simulation scheme represents a powerful tool from which precious and exptl. inaccessible information on polymerization processes in the presence of crosslinkers can be extracted The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Recommanded Product: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)
The Article related to kinetic free radical crosslinking polymerization numerical, Chemistry of Synthetic High Polymers: Polymerization Kinetics, Mechanisms, Thermodynamics, Catalysis, Catalysts and other aspects.Recommanded Product: 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)
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