申请人:E. I. Du Pont de Nemours and Company
公开号:US05145999A1
公开(公告)日:1992-09-08
1-[2,2-bis(trifluoromethyl)-3,3,4,4,5,5,5-heptafluoropentyl]-3,5-diaminoben zene and 1-[2,2-bis(trifluoromethyl)-3,3,4,4,5,5,5-heptafluoropentyl]-4-aminobenzen e, as well as fluorinated polymers, preferably polyimides. The perfluoroalkyl group of these amines is connected to the benzene ring through a tertiary carbon atom followed by a methylene group. This renders the amines more reactive than other amines, where the perfluoroalkyl group is connected directly to the benzene ring. The absence of hydrogen from the group containing the tertiary carbon atom which is adjacent to the perfluorinated groups, prohibits dehydrofluorination.
1-[2,2-双(三
氟甲基)-3,
3,4,4,5,5,5-庚
氟戊基]-3,5-二
氨基苯和1-[2,2-双(三
氟甲基)-3,
3,4,4,5,5,5-庚
氟戊基]-4-
氨基苯,以及
氟化聚合物,优选聚
酰亚胺。这些胺的
全氟烷基通过三级碳原子后跟一个亚甲基连接到苯环上。这使得这些胺比其他胺更具反应性,其中
全氟烷基直接连接到苯环上。含有与
全氟化基相邻的三级碳原子的基团中缺少氢,因此禁止脱
氟。