申请人:ZEON CORPORATION
公开号:US10351650B2
公开(公告)日:2019-07-16
The present invention is a method for producing a conjugated diene random copolymer comprising polymerizing at least a conjugated diene monomer using a living radical polymerization method to produce a conjugated diene polymer that comprises a halogen atom at a terminal of a polymer chain, a living radical polymerization reaction being initiated using a copper salt, a multidentate ligand that comprises a nitrogen atom having an sp2 hybridized orbital as a coordinating atom, and an organic halide, to produce the conjugated diene polymer having a number average molecular weight (Mn) of 1,000 to 1,000,000 and a molecular weight distribution (Mw/Mn) of less than 2.0. The present invention provides a method for efficiently and inexpensively producing a conjugated diene polymer that includes a halogen atom at the terminal of the polymer chain, and has the desired molecular weight and a narrow molecular weight distribution.
本发明是一种生产共轭二烯无规共聚物的方法,包括使用活自由基聚合方法聚合 至少一种共轭二烯单体,生成在聚合物链末端包含卤原子的共轭二烯聚合物,活自由基 聚合反应使用铜盐引发、由具有 sp2 杂化轨道的氮原子作为配位原子的多叉配体,以及有机卤化物,生成共轭二烯聚合物,该聚合物的平均分子量(Mn)为 1,000 至 1,000,000 ,分子量分布(Mw/Mn)小于 2。0.本发明提供了一种高效、廉价地生产共轭二烯聚合物的方法,这种聚合物在聚合物链的末端含有一个卤原子,具有所需的分子量和较窄的分子量分布。