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US 7,662,899 B2Granted
Organic tellurium compound, process for producing the same, living radical polymerization initiator, process for producing polymer with the same, and polymer
AssigneeOtsuka Chemical Co., Ltd.
InventorsShigeru Yamago, Junichi Yoshida
Life of this patent
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Abstract
An organotellurium compound of the formula (1) is useful as a living radical polymerization initiator and makes possible precision control of molecular weights and molecular weight distributions under mild conditions wherein R1 is C1-C8 alkyl, R2 and R3 are each a hydrogen atom or C1-C8 alkyl, and R4 is aryl, substituted aryl, aromatic heterocyclic group, hydroxycarbonyl or cyano.
Claims11
A living radical polymer which is obtained by subjecting a vinyl monomer to living radical polymerization with use of a living radical polymerization initiator of the formula (4)
- wherein R1 is C1-C8 alkyl, R2 and R3 are each a hydrogen atom or C1-C8 alkyl, and R4 is aryl, substituted aryl, aromatic heterocyclic group, hydroxycarbonyl or cyano.
Dependencies are inferred from the claim text.