Mechanisms of antioxidant action: time-controlled photoantioxidants for polyethylene based on soluble iron compounds

Sahar Al-Malaika, Awni M. Marogi, Gerald Scott

Research output: Contribution to journalArticle

Abstract

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.
Original languageEnglish
Pages (from-to)685-698
Number of pages14
JournalJournal of Applied Polymer Science
Volume31
Issue number2
DOIs
Publication statusPublished - 5 Feb 1986

Keywords

  • antioxidants testing
  • chemical reactions
  • photochemical reations
  • iron compounds

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