Al. Rusanov et al., SYNTHESIS OF 4,4'-BIS(4-AMINOPHENOXY)BENZOPHENONE AND POLYIMIDES BASED ON THIS COMPOUND, Russian chemical bulletin, 45(3), 1996, pp. 633-636
Synthesis of 4,4 '-bis(4-aminophenoxy)benzophenone was performed start
ing from chloral. Various polyimides were obtained by reactions of 4,4
'-bis(4-aminophenoxy)benzophenone with aromatic tetracarboxylic acid d
ianhydrides. Some of the polyimides obtained are crystalline compounds
.