Alcoholysis of copolymers of vinyl acetate with itaconic acid
Article first published online: 10 MAR 2003
Copyright © 1990 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 39, Issue 7, pages 1419–1424, 5 April 1990
How to Cite
Kotzeva, L. and Mateva, R. (1990), Alcoholysis of copolymers of vinyl acetate with itaconic acid. J. Appl. Polym. Sci., 39: 1419–1424. doi: 10.1002/app.1990.070390701
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Accepted: 27 DEC 1988
- Manuscript Received: 8 AUG 1988
We studied alcoholysis of vinyl acetate and itaconic acid (up to 8.5 mol %) copolymers. We obtained the copolymers both by single and continuous addition of the second comoner, and carried out the alcoholysis in methanol and methanol-gasoline medium at temperature 30°C using sodium hydroxide as catalyst. We established that the presence of itaconic sequences in the vinyl acetate polymer chain in an amount of 1.5–2 mol % causes significant reduction in the viscosity of methanol solutions without greatly affecting the molecular weight of the copolymer. The alcoholysis of random copolymers, containing not more than 4 mol % itaconic sequences takes place at a higher rate. The vinyl acetate-vinyl alcohol copolymer, containing groups of itaconic acid has better surface activity. This is more clearly expressed in the case of random copolymers.