Abstract
The behaviour of antioxidant in polymers differs markedly depending on the type of test used. The performance of antioxidants can be optimized on the basis of intrinsic activity, compatibility with the polymer and rate of loss from the polymer by volatilization. Molecular interactions in antioxidants and stabilizers have a profound effect on all these factors which may be influenced in opposite directions. Present trends in antioxidant and stabilizer technology are toward agents designated to meet specific requirements. The progress of recent studies on the mechanism of sulphide and phosphite antioxidants is reviewed.
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