Electroinitiated polymerization of methyl methacrylate in aqueous sulfuric acid
Article first published online: 9 MAR 2003
Copyright © 1976 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 20, Issue 9, pages 2441–2450, September 1976
How to Cite
Pistoia, G., Ricci, A. and Voso, M. A. (1976), Electroinitiated polymerization of methyl methacrylate in aqueous sulfuric acid. J. Appl. Polym. Sci., 20: 2441–2450. doi: 10.1002/app.1976.070200913
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Revised: 11 NOV 1975
- Manuscript Received: 31 JUL 1975
The polymerization of methyl methacrylate electroinitiated at the cathode was examined in concentrated solutions of the monomer containing aqueous sulfuric acid. The initiating reaction is not due to the formation of hydrogen atoms, as demonstrated by varying the nature of the cathode and of the acid, but involves the participation of the polymeric peroxide contained in the monomer. The cathodic material greatly affects the molecular weights and the yields, as does the composition of the solutions. Lead cathodes, which proved to be particularly efficient, showed phenomena of adsorption of both monomer and polymer. Kinetic curves are similar to those obtained in conventional radical polymerizations of MMA; a marked gel effect, limiting the termination reaction and leading to very high molecular weights, was observed.