New electrophilic olefins containing picrate group were synthesized and their ability as a cationic initiator was investigated. These were 2,2-dicyanovinyl picrate and 1-phenyl-2,2-dicyanovinyl picrate. They acted by zwitterionic intermediates which expelled the picrate anion, thus forming a carbenium-gegenion pair. They were active initiators for the cationic polymerization of electron-rich vinyl monomers such as N-vinyl carbazole, p-methoxystyrene and vinyl ether, and oxacyclic ethers.

Picrate를 가지는 새로운 친전자성 올레핀을 합성하였으며 그들의 양이온 개시능력을 조사하였다. 이들은 각각 2,2-dicyanovinyl picrate와 1-phenyB-2,2-dicyanovinyl picrate이 며 picrate anion을 탈리시킬 수 있는 zwitterion 줌간체를 생성시켜 carbenium-gegenion pair를 형성한다. 전자가 풍부한 비닐 단량체인 N-vinyl carbazole, p-methoxyrene. ethyl vinyl ether 및 oxacyclic ether에 대한 효과적인 양이온 개시제로 작용하였다.

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