Unsaturated dicarboxylic acid Parents ⬅️ Hydroxydicarboxylic acid Children ➡️ Dicarboxylic acid ➡️ Addition polymer ➡️ Diester ➡️ Hydroxydicarboxylic acid Reactions Unsaturated dicarboxylic acid⟶Dicarboxylic acid Unsaturated dicarboxylic acid⟶Addition polymer Unsaturated dicarboxylic acid⟶Diester Unsaturated dicarboxylic acid⟶Hydroxydicarboxylic acid