Synonyms: Poly(sulfonyl-p-phenyleneiminoterephthaloylimino-p-phenylene)(8CI); 4,4'-Diaminodiphenyl sulfone-terephthalic acid polymer, SRU;4,4'-Diaminodiphenyl sulfone-terephthaloyl chloride copolymer, SRU;4,4'-Diaminodiphenyl sulfone-terephthaloyl chloride polymer, SRU;4,4'-Diaminodiphenyl sulfone-terephthaloyl dichloride polymer, SRU;4,4'-Sulfonylbisaniline-terephthaloyl chloride copolymer, SRU;4,4'-Sulfonylbisaniline-terephthaloyl chloride polymer, SRU;4,4'-Sulfonyldianiline-terephthalic acid copolymer, SRU;4,4'-Sulfonyldianiline-terephthalic acid polymer, SRU; 4,4'-Sulfonyldianiline-terephthaloylchloride copolymer, SRU; 4-Aminophenyl sulfone-terephthalic acid polymer, sru;Bis(4-aminophenyl) sulfone-terephthalic acid copolymer, sru;Poly(4,4'-diphenylsulfonylterephthalamide);Poly(iminocarbonyl-1,4-phenylenecarbonylimino-1,4-phenylenesulfonyl-1,4-phenylene);Poly(p-diaminodiphenylsulfoneterephthalamide);Poly(sulfonyldi-p-phenyleneterephthalamide) SRU;Poly[(sulfonyldi-p-phenylene)terephthalamide];