prov:value
| - Further, other than the above, the aromatic diamine may be 4,4???-diaminobiphenyl, 4,4???-diaminodiphenyl methane, 4,4???-(9-fluorenylidene)-dianiline, 2,2???-bis(trifluoromethyl)-4,4???-diaminobiphenyl, 3,3???-dichloro-4,4???-diaminodiphenyl methane, 2,2???-dichloro-4,4???-diaminobiphenyl, 2,2???,5,5???-tetrachlorobenzidine, 2,2-bis(4-aminophenoxyphenyl)propane, 2,2-bis(4-aminophenyl)propane, 2,2
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