Peroxide modification of linear low-density polyethylene: A comparison of dialkyl peroxides
Article first published online: 10 MAR 2003
Copyright © 1993 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 49, Issue 5, pages 785–798, 5 August 1993
How to Cite
Bremner, T. and Rudin, A. (1993), Peroxide modification of linear low-density polyethylene: A comparison of dialkyl peroxides. J. Appl. Polym. Sci., 49: 785–798. doi: 10.1002/app.1993.070490504
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Accepted: 19 NOV 1992
- Manuscript Received: 17 SEP 1992
A commercial-grade LLDPE resin was cross-linked using three different dialkyl peroxides, at three different concentrations. The peroxides were ranked in order of their Cross-linking efficiency and their effectiveness at increasing the storage modulus of the virgin resin at the cure temperature. The chemical mechanism by which the cross-linking occurs is shown to be closely related to the changes in concentrations of reactive vinyl species on the polyethylene molecules, which follows well with proposed mechanisms of previous publications. Finally, a direct relationship is shown to exist between the rate of peroxide decomposition and the rate of increase in storage modulus of the rubbery modified resin during the curing reaction. © 1993 John Wiley & Sons, Inc.