2-Propenoic acid, 2-methyl-, 2-((1,1-dimethylethyl)amino)ethyl ester, polymer with methyl 2-methyl-2-propenoate, 2-propenoic acid and N-(1,1,3,3-tetramethylbutyl)-2-propenamide, potassium salt, 1,1-dimethylpropyl 2,2-dimethylpropaneperoxoate-initiated 228406-55-1