102135-84-2 2-Methylpropyl 2-methyl-2-propenoate homopolymer 2-Propenoic acid, 2-methyl-, 2-methylpropyl ester, homopolymer 53801-42-6 55126-77-7 79331-93-4 9011-15-8 Isobutyl methacrylate homopolymer Poly(isobutyl methacrylate)