Abstract

AbstractElectron‐donating substituents of N‐(arylamine) phthalimides and succinimides promote antioxidative efficiency of these compounds in thermooxidation of polypropylene (190°C, oxygen), while electron‐withdrawing substituents contribute to a reduced volatilization of the polymer. 2,6‐Ditert.butyl‐4‐methylphenol (ionol) raises the antioxidative efficiency of 4‐methoxy and 4‐methyl substituted derivatives displaying a distinct synergism.

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