| 摘要 |
PROBLEM TO BE SOLVED: To obtain a new ionic compound having high heat stability, useful as a photopolymerization initiator for modifying a polymer. SOLUTION: This ionic compound contains at least one A<+> X<-> group (A<+> is a biaryliodonium, an arylsulfonium, an arylacrylsulfonium, etc.; X<-> is an imide anion, methylide anion, etc.) such as diphenyliodonium bissulfonylimide [N(SO2 F)2 ]<-> [(C6 H5 )2 I]<+> . The compound is obtained by subjecting a soluble salt of the A<+> X1 <-> or (A<+> X1 <-> )p in which X1 <-> is a hydrophilic anion (hydroxide, chloride, etc.) and a water-soluble compound of the formula A<+> X1 <-> in which A1 <+> is a highly hydrophilic cation to double decomposition in water or a mixture of water/a light alcohol (methanol or ethanol). The compound is used for polymerizing or cross-linking a monomer or a prepolymer which can be subjected to cationic reaction as a photoinitiator constituting an acid source for catalyzing a reaction. |
