The preparation of high-viscosity, partially hydrolyzed polymethacrylamides
Article first published online: 9 MAR 2003
Copyright © 1983 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 28, Issue 12, pages 3607–3610, December 1983
How to Cite
Shepitka, J. S., Case, C. E., Donaruma, L. G., Hatch, M. J., Kilmer, N. H., Khune, G. D., Martin, F. D., Ward, J. S. and Wilson, K. V. (1983), The preparation of high-viscosity, partially hydrolyzed polymethacrylamides. J. Appl. Polym. Sci., 28: 3607–3610. doi: 10.1002/app.1983.070281201
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Accepted: 17 JUN 1983
- Manuscript Received: 30 JUL 1982
Due to the high chain transfer to monomer, the homopolymerization of methacrylamide yields polymers of extremely low molecular weight. On partial alkaline hydrolysis, the viscosities of these polymers in aqueous solution are much inferior to those of partially hydrolyzed polyacrylamide (HPAM). However, polymethacrylamides prepared by room temperature, persulfate-initiated polymerization in the presence of small amounts of N,N′-methylenebisacrylamide demonstrate posthydrolysis reduced viscosities in 0.01% NaCl comparable to typical commercial HPAM materials.