Reaction kinetics and gel effect on the polymerization of 2-ethoxyethyl methacrylate and 2(2-ethoxyethoxy) ethyl methacrylate

Autor:	J. L. de la Peña, Julio Guzmán, F. Rubio, José M. García, Félix C. García, Evaristo Riande
Rok vydání:	2002
Předmět:	Polymers and Plastics Bulk polymerization Chemistry Organic Chemistry Radical polymerization Cationic polymerization Solution polymerization macromolecular substances Methacrylate Chain-growth polymerization Polymerization Polymer chemistry Materials Chemistry Suspension polymerization
Zdroj:	Journal of Polymer Science Part A: Polymer Chemistry. 40:3987-4001
ISSN:	0887-624X
DOI:	10.1002/pola.10480
Popis:	Polymerization kinetics at several temperatures of 2-ethoxyethyl methacrylate (EEMA) and 2(2-ethoxyethoxy) ethyl methacrylate (DEMA) in bulk and in dioxane solutions are described. The gel effect was never detected at monomer concentrations equal to or lower than 1 mol L -1 , although in the bulk polymerization both monomers display the gel effect at very low conversions. Because of the influence of the efficiency factor f on the polymerization rate, a theoretical kinetic interpretation of the changes in f with monomer and initiator concentrations and kinetic parameters was performed to achieve a better understanding of the mechanisms involved in radical polymerization.
Databáze:	OpenAIRE
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