2-Propenoic acid, 2-methyl-, polymer with methyl 2-methyl-2-propenoate, octadecyl 2-methyl-2-propenoate and alpha-(1-oxo-2-propenyl)-omega-hydroxypoly(oxy-1,2-ethanediyl) 67892-84-6 Polyethylene glycol, monoacrylate, polymer with methacrylic acid, methyl methacrylate, and octadecyl methacrylate