N-(4-Anilinophenyl)-Methacrylamide, a Polymerizable Amine Antioxidant: Synthesis, Copolymerization, Copolymer Properties, and Performance

Abstract

Abstract In conclusion, we have demonstrated that N(4-anilinophenyl)-methacrylamide (APMA) is a readily polymerizable, nonstaining amine antioxidant molecule that can be incorporated into free-radical emulsion polymerization recipes by a variety of techniques. Furthermore, we have also demonstrated that the polymer-bound APMA's effectiveness can be greatly enhanced in gum or cured rubber when it is used in conjunction with either free or bound sulfur-containing secondary antioxidants (synergists). Superior performance was demonstrated for the polymer-bound antioxidant systems using oxygen absorption, DSC, and aged (extracted) physical property retention techniques.