Synthesis and characterization of soluble copolyimides containing chalcone and phosphine oxide moieties in the main chain.

The article reports on the synthesis of functional diamines 3,3'-diaminochalcone and bis(3-aminophenyl)-3,5-bis(trifluoromethyl)phenyl phosphine oxide. According to the authors, overall yields were pegged at 78 and 70 percent. The copolymides prepared exhibited high levels of solubility in organic solvents and thermal stability up to 450 degrees Celsius. They also report that copolymides that contain chalcone and phosphine oxide moieties in the main chain exhibited high levels of adhesiveness and photoreactivity.