Imidization partial fluorination

As part of an effort to develop high-performance, high-temperature-resistant polymers for microelectronics applications, we also recently described a series of both partially fluorinated and nonfluorinated poly(aryl ether ketone)s containing amide, amide-imide, cyano oxadizole, or pyridazine groups and characterized their thermal and electrical properties.11... 

Table III lists the properties of perfluorinated polyimides, along with those of partially fluorinated and unfluorinated polyimides. The structure of PMDA/ODA is the same as that of Dupont s Kapton. Because of the direct introduction of fluorines into the aromatic rings and the flexible structure of the lOFEDA component, the polymer decomposition temperatures and Tg s of perfluorinated polyimides are slightly lower than those of conventional poly imides. The thermal stability of these films is nonetheless high enough to withstand the manufacturing process for IC s and muitichip modules.

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