9,9-bis (perfluoroalkyl) xanthene, 9-aryl-9-perfluoroalkylxanthene, monomers and polymers derived therefrom

摘要

Disclosed are rigid fluorinated monomers, their preparation, and polymers derived therefrom based on two novel tricyclic xanthene core systems, 9,9-bis-(perfluoroalkyl)xanthene (I) and 9-phenyl-9-perfluoroalkylxanthene (II). The monomers have utility in the preparation of advanced high-performance polymers, particularly polyimides.