Synonyms: Poly[(1,3-dioxo-2,5-isoindolinediyl)oxy(1,3-dioxo-5,2-isoindolinediyl)-p-phenyleneoxy-p-phenylene](8CI); 3,3',4,4'-Diphenyl ether tetracarboxylic dianhydride-4,4'-oxydianilinecopolymer, polyimide sru; 3,3',4,4'-Oxydiphthalic anhydride-4,4'-oxydianilinecopolymer, sru; 3,3',4,4'-Tetracarboxydiphenyl oxide dianhydride-p-aminophenylether polymer, SRU; 4,4'-Diaminodiphenyl ether-3,3',4,4'-diphenyl ethertetracarboxylic dianhydride copolymer, polyimide SRU; 4,4'-Diaminodiphenylether-3,3',4,4'-tetracarboxydiphenyl ether polymer, SRU; 4,4'-Diaminodiphenylether-3,3',4,4'-tetracarboxydiphenyl oxide dianhydride polymer, SRU;4,4'-Diaminodiphenyl ether-4,4'-oxydiphthalic anhydride copolymer sru;4,4'-Diaminodiphenyl ether-4,4'-oxydiphthalic dianhydride copolymer, sru;4,4'-Diaminodiphenyl oxide-4,4'-oxydiphthalic acid polymer, SRU;4,4'-Oxadianiline-4,4'-oxybis(phthalic anhydride) copolymer, SRU;4,4'-Oxybis(1,2-benzenedicarboxylic acid)-4,4'-oxydianiline polymer, SRU;4,4'-Oxybisaniline-4,4'-oxybis(phth