Synonyms: Benzo[1,2-c:4,5-c']dipyrrole,deriv., polymer; 2,2'-Bis(trifluoromethyl)-4,4'-diaminobiphenyl-pyromelliticanhydride copolymer polyimide sru;2,2'-Bis(trifluoromethyl)-4,4'-diaminobiphenyl-pyromellitic dianhydridecopolymer, sru; 2,2'-Bis(trifluoromethyl)-4,4'-diaminobiphenyl-pyromelliticdianhydride polymer, sru; 2,2'-Bis(trifluoromethyl)benzidine-pyromelliticdianhydride copolymer, sru;Poly[(5,7-dihydro-1,3,5,7-tetraoxobenzo[1,2-c:4,5-c']dipyrrole-2,6(1H,3H)-diyl)[2,2'-bis(trifluoromethyl)[1,1'-biphenyl]-4,4''-diyl]]