申请人:The Dow Chemical Company
公开号:US05021602A1
公开(公告)日:1991-06-04
Novel compounds have at least one perfluorocyclobutane ring and at least two functional groups suitable for forming condensation polymers. Preferably the compounds have a structures represented by Formula II: ##STR1## wherein R and R' independently represent optionally inertly substituted groups; X and X' represent any molecular structures which link R and R' with the perfluorocyclobutane ring; n and n' are the number of G and G' groups, respectively; and G and G' independently represent any reactive functional groups or any groups convertible into reactive functional groups. The compound are preferably prepared by a process of thermally dimerizing trifluorovinyl compound to form a compounds of Formula I G.sub.n --R--X--CF.dbd.CF.sub.2 wherein G represents G or G' in Formula II; X represents X or X' of Formual II; and n represents n or n' of Formula II, to form a compound having a perfluorocyclobutane group.
新型化合物至少具有一个全氟环丁烷环和至少两个适合形成缩聚聚合物的功能基团。这些化合物最好具有由公式II表示的结构:其中R和R'分别表示可选择地惰性取代基团;X和X'表示任何将R和R'与全氟环丁烷环连接的分子结构;n和n'分别是G和G'基团的数量;G和G'分别表示任何反应性功能基团或可转化为反应性功能基团的基团。这些化合物最好通过热二聚三氟乙烯化合物的过程制备,形成公式I G.sub.n --R--X--CF.dbd.CF.sub.2化合物,其中G表示公式II中的G或G';X表示公式II中的X或X';n表示公式II中的n或n',以形成具有全氟环丁烷基团的化合物。