Functional Polymers. XXVI. Co- and Terpolymers Involving Methacrylates, N-Vinylpyrollidone, and Polymerizable Ultraviolet Stabilizers and Antioxidants

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Abstract
2(2-Hydroxy-5-isopropenyl)2H-benzotriazole and 2(2-hydroxy-5-vinylphenyl)2H-benzotriazole, both of which are well-established polymerizable ultraviolet stabilizers, have been co- and terpolymerized with N-vinylpyrrolidone, 1,1,1-tris(trimethylsiloxy)-methacrylato-propylsilane, and various methacrylate esters. Additionally, 4-isopropenyl-2,6-ditertiarybutyl phenol was co-and terpolymerized with these monomers as such to provide polymer compositions stable against autoxidation or in combination with the 2(2-hydroxy-5-isopropenylphenyl)2H-benzotriazole to provide stability against autoxidation and photooxidation. The polymerizations resulted in insoluble polymers from which the ultraviolet stabilizer or the antioxidant could not be extracted or leached out. The stabilized polymers had water absorption behavious similar to that co- and terpolymers without the incorporation of the polymerizable stabilizers.