2-Propenoic acid, 2-methyl-, 2-(dimethylamino)ethyl ester, sulfate (1:1), polymer with 2-((1,1-dimethylethyl)amino)ethyl 2-methyl-2-propenoate sulfate (1:1) 67939-27-9 Poly(dimethylaminoethyl methacrylate sulfate, tert-butylaminoethyl methacrylate sulfate)