2-Propenoic acid, 2-methyl-, butyl ester, polymer with ethenylbenzene, (1-methylethenyl)benzene and methyl 2-methyl-2-propenoate 73275-62-4 Ethenylbenzene, butyl 2-methyl-2-propenoate, methyl 2-methyl-2-propenoate, (1-methylethenyl)benzene polymer