121864-91-3 2-Propenoic acid, 2-methyl-, methyl ester, polymer with 5-amino-8-ethenyl-2,3-dihydro-1,4-phthalazinedione 5-Amino-8-vinylphthalazine-1,4(2H,3H)-dione -methyl methacrylate copolymer Avpd-mma copolymer