2-Propenoic acid, 2-methyl-, methyl ester, polymer with 2-(1-oxa-4-azaspiro(4.5)dec-4-yl)ethyl 2-methyl-2-propenoate 25300-73-6 Methyl methacrylate, 2-(spiro(cyclohexane-1,2'-oxazolidin)-3'-yl)ethyl methacrylate polymer