Crosslinking studies of polyether–ester-based polyurethane systems
Article first published online: 10 MAR 2003
Copyright © 1990 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 39, Issue 4, pages 943–954, 20 February 1990
How to Cite
Kothandaraman, H., Venkatarao, K. and Thanoo, B. C. (1990), Crosslinking studies of polyether–ester-based polyurethane systems. J. Appl. Polym. Sci., 39: 943–954. doi: 10.1002/app.1990.070390413
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Accepted: 7 FEB 1989
- Manuscript Received: 30 JAN 1989
Ether- and ester-based prepolymeric diols suitable for polyurethane elastomer formation were prepared from polyoxytetramethyleneglycol and polyoxytetramethylene–oxypropyleneglycol with dicarboxylic acids like adipic acid, maleicacid, and phthalic acid. Crosslinked polyurethane elastomers were prepared from these prepolymers using various concentrations of trimethylolpropane as a crosslinker and toluenediisocyanate as the curing agent. Crosslinked polyurethanes were also prepared by a method taking excess toluenedisocyanate other than that of the stochiometric requirement and curing it at a comparatively higher temperature. The data on mechanical properties of these elastomers show that both methods of crosslinking in polyurethane imparts a similar effect on mechanical properties.