Synonyms: Poly[(1,3-dihydro-1,3-dioxo-2H-isoindole-5,2-diyl)-1,4-phenyleneoxy-1,
4-phenylene(1-methylethylidene)-1,4-phenyleneoxy-1,4-phenylene(1,3-d
ihydro-1,3-dioxo-2H-isoindole-2,5-diyl)carbonylimino-1,4-phenyleneoxy
-1,4-phenylene(1-methylethylidene)-1,4-phenyleneoxy-1,4-phenyleneimi
nocarbonyl]