Ionic compound, resin composition containing the same and use thereof

摘要

It is an object of the present invention to provide a resin composition prepared by using a new radiation polymerization initiator that generates a small amount of outgas during reaction and has excellent reactivity and transparency. The invention provides an ionic compound comprising a cationic portion having a hydroxyl group and/or a carboxylic acid group and an anionic portion of the formula (1):
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ [BR 4 ] - €ƒ€ƒ€ƒ€ƒ€ƒ(1)
wherein R may be the same or different and represents a phenyl group substituted with F or CF 3 . Preferably, the anionic portion is [B(C 6 F 5 ) 4 ] - , [B(C 6 H 4 CF 3 ) 4 ] - , [(C 6 F 5 ) 2 BF 2 ] - , [C 6 F 5 BF 3] - or [B(C 6 H 3 F 2 ) 4 ] - . In addition, the invention provides a radiation polymerization initiator and a resin composition comprising the ionic compound.