| 摘要 |
A polymerizable composition comprising a polymerization initiator (A) represented by the formula (1) and a radical-polymerizable compound (B): Formula (1) (wherein R<5>, R<6>, R<7>, R<8 >and R<9 >are each independently a hydrogen atom, an alkyl, alkoxyl, hydroxyl or acyloxy group, a halogen atom, or -NR<10>R<11>, but at least one of them is -NR<10>R<11>; wherein R<1>, R<2>, R<3>, R<4>, R<10 >and R<11 >are each independently a hydrogen atom, or an alkyl or aryl group; and Z<- >is an arbitrary anion).
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