Mechanisms of antioxidant action: Time-controlled photoantioxidants for polyethylene based on soluble iron compounds
Article first published online: 9 MAR 2003
Copyright © 1986 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 31, Issue 2, pages 685–698, 5 February 1986
How to Cite
Al-Malaika, S., Marogi, A. M. and Scott, G. (1986), Mechanisms of antioxidant action: Time-controlled photoantioxidants for polyethylene based on soluble iron compounds. J. Appl. Polym. Sci., 31: 685–698. doi: 10.1002/app.1986.070310232
- Issue published online: 9 MAR 2003
- Article first published online: 9 MAR 2003
- Manuscript Accepted: 20 JUN 1985
- Manuscript Received: 1 JAN 1985
The effects of two component combinations of soluble iron compounds on the rate of photooxidation and associated embrittlement times of low density polyethylene (LDPE) are examined. It is found that photoantioxidants retard the photo prooxidant effects of iron compounds giving controllable induction periods. In the case of the combination of a nickel dithiocarbamate (photoantioxidant) and an iron dithiocarbamate (photo prooxidant) a very wide range of embrittlement times can be obtained in which the induction period is controlled by the nickel complex and the post-induction period rate by the iron complex.