申请人:E. I. du Pont de Nemours and Company
公开号:US05051520A1
公开(公告)日:1991-09-24
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.
揭示了刚性氟化单体,它们的制备以及基于两种新颖的三环黄色素核心系统9,9-双(全氟烷基)黄色素(I)和9-苯基-9-全氟烷基黄色素(II)衍生的聚合物。这些单体在制备先进高性能聚合物,特别是聚酰亚胺方面具有实用性。