2-Propenoic acid, 2-methyl-, methyl ester, polymer with 1,3-butadiene, ethenylbenzene, (1-methylethenyl)benzene and 2-propenenitrile 26950-66-3 Acrylonitrile, 1,3-butadiene, styrene, alpha-methylstyrene, methyl methacrylate polymer