Biphenyl Bis [π-cyclopentadienyl ） iron] Dication as an Efficient Cationic Photoinitiator for Epoxy Polymerization  

作　　者：王涛 张影 任晓玲 

机构地区：[1]State Key Lab of Chemical Resource Engineering, College of Science, Beijing University of Chemical Technology, Beijing 100029, China

出　　处：《Chinese Journal of Chemical Engineering》2008年第5期819-822,共4页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （20676012）.

摘　　要：Ferrocenium monocations as photoinitiators for cationic photopolymerization suffer from a limitation of low absorption and low reactivity under high-pressure Hg lamp. Here, a ferrocenium dication salt, biphenyl bis [π-cyclopentadienyl）iron] hexafluorophosphate （[bis（Cp-Fe）-biphenyl] （PF6）2 was synthesized by the ligand exchange reaction between ferrocene and biphenyl. The chemical structure was characterized with FTIR and ^1HNMR. The separation of ferrocenium monocation cyclopentadien-iron-biphenyl hexafluorophosphate （[Cp-Fe-biphenyl] PF6） and dication [bis（Cp-Fe）-biphenyl] （PF6）2 was carried out by column chromatography. The photoactivity of initiating photopolyinerization of epoxide ER14221 was studied as a cationic photoinitiator. [Bis（Cp-Fe）-biphenyl] （PF6）2 can efficiently absorb radiation above 300nm and its photoactivity is higher than that of its monocation.Ferrocenium monocations 在高压的 Hg 下面作为为 cationic photopolymerization 的 photoinitiators 受不了低吸收和低反应的限制灯。这里， ferrocenium dication 盐，联本基二度[(蟺 - cyclopentadienyl ) 熨] hexafluorophosphate ([二度(Cp-Fe )-biphenyl](PF6 ) 2 被在 ferrocene 和联本基之间的 ligand 交换反应综合。化学结构与 FTIR 和 1HNMR 被描绘。ferrocenium monocation cyclopentadien-iron-biphenyl hexafluorophosphate 的分离([Cp-Fe-biphenyl ] PF6 ) 并且 dication [二度(Cp-Fe )-biphenyl](PF6 ) 2 被列层析执行。开始 epoxide ERl4221 的 photopolymerization 的 photoactivity 作为 cationic photoinitiator 被学习。[2 能高效地吸收的二度(Cp-Fe )-biphenyl](PF6 ) 在 300nm 和它的 photoactivity 上面的放射比它的 monocation 的高。

关 键 词：cationic photopolymerization [bis（Cp-Fe）-biphenyl] （PF6）2 PHOTOINITIATOR PHOTOACTIVITY 

分 类 号：TQ24[化学工程—有机化工]