| 摘要 |
Triarylsulfonium salts of formula I or II are useful as initiators for cationic photopolymerizations: wherein Ar<1 >and Ar<2 >are independently polycyclic aryl, substituted aryl, heteroaryl, substituted heteroaryl, or aryl or heteroaryl, pendant from a polymer chain; and MtXn<- >is a complex anion selected from PF6<->, SbF6<->, AsF6<->, GaF6<->, BF4<->, (C6F5)4B<- >and CF3SO3<- >, C9F19SO3<- >and (CF3SO2)3C<->.
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