SEARCH Articles Figures Tables A Michael addition A-Phenylthiomethylation Acids methacrylic acid Additives esters Esters Michael addition Esters methacrylate Esters methacrylic Esters phenylthiomethyl Methacrylic acid Methacrylic acid ester Methacrylic acid methacrylate Methacrylic acid, a-phenylthiomethyl ester