Otsuka Chemical Co., Ltd.

Japan Science and Technology Agency

Kunihiko Sugoh

Shigeru Yamago

Takashi Kameshima

Emiko Daimon

Kazuhiro Kawano

Hikaru Umemoto

Osamu Ito

Ken Shu

An organobismuth compound represented by the formula (1) and a method for preparing a living radical polymer using the organobismuth compound. In the formula (1), Rto Reach represent a C1-C8 alkyl group, an aryl group, a substituted aryl group, an aromatic heterocyclic group or a group represented by the formula (2) where at least one of Rto Ris a group represented by the formula (2), wherein Rand Reach represent a C3-C8 alkyl group, an aryl group or a substituted aryl group, and Rto Reach represent a hydrogen atom, a C1-C8 alkyl group, an aryl group or a substituted aryl group.

Living radical polymerization promoter

An organobismuth compound represented by the formula (1) wherein Rand Rare C-Calkyl, aryl, substituted aryl or an aromatic heterocyclic group, Rand Rare each a hydrogen atom or C-Calkyl, and Ris aryl, substituted aryl, an aromatic heterocyclic group, acyl, amido, oxycarbonyl or cyano.

Organic bismuth compound, method for producing same, living radical polymerization initiator, method for producing polymer using same, and polymer

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Tokushima, Japan

Kunihiko Sugoh