Polymerization kinetics in propellants of the hydroxyl-terminated polybutadiene–isophorone diisocyanate system
Article first published online: 9 MAR 2003
Copyright © 1976 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 20, Issue 4, pages 1117–1124, April 1976
How to Cite
Yee, R. Y. and Adicoff, A. (1976), Polymerization kinetics in propellants of the hydroxyl-terminated polybutadiene–isophorone diisocyanate system. J. Appl. Polym. Sci., 20: 1117–1124. doi: 10.1002/app.1976.070200422
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Revised: 8 AUG 1975
- Manuscript Received: 3 JUN 1975
The copolymerization of a hydroxyl-terminated polybutadiene with isophorone diisocyanate in a propellant formulation has been studied. The kinetic rates for four different reaction temperatures have been measured both in gumstock and samples containing ammonium perchlorate. It is shown that the presence of ammonium perchlorate (up to 90% by weight) neither catalyzes nor retards the rate of binder polymerization. It is also shown that the polymerization follows an apparent second-order rate low with an activation energy of 9.8 kcal/mole.