Scheme 5From: New photostabilizers for polystyrene based on 2,3-dihydro-(5-mercapto-1,3,4-oxadiazol-2-yl)-phenyl-2-(substituted)-1,3,4-oxazepine- 4,7-dione compounds (2,3-dihydro-(5-mercapto-1,3,4-oxadiazol-177 2-yl)-phenyl-2-(substituted)-1,3,4-oxazepine- 4,7-dione compounds) Back to article page