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Citation: Yang Jihua, Pang Shufen, Sun Tao, Li Ying, Ouyang Jun. STEREOSPECIFIC POLYMERIZATION OF BUTADIENE CATALYZED BY NdCl₃·2Phen-HAl(i-Bu)₂ SYSTEM[J]. Chinese Journal of Applied Chemistry, ;1984, 1(3): 11-18. shu

STEREOSPECIFIC POLYMERIZATION OF BUTADIENE CATALYZED BY NdCl₃·2Phen-HAl(i-Bu)₂ SYSTEM

1.
Changchun Institute of Applied Chemistry, Academia Sinica

Received Date: 4 January 1984
Available Online: 28 February 1984

A new binary rare earth chloride catalyst composed of NdCl₃·2Phen(Phen=1, 10-phenanthroline) and HAl (i-Bu)₂ for stereospecific polymerization of butadiene has been presented. In contrast to other type of rare earth chloride catalysts the present system is characterized by its ability to control the molecular weight of the product and its specific mode of formation. The general rule of butadiene polymerization with the cata-lyst was studied. It was found that HAl(i-Bu)₂ is mainly the chain transfer agent in the reaction and the HAl (i-Bu)₂/monomer ratio is a key parameter controlling the molecular weight of polybutadiene obtained.The possible role of the phen molecule in molecular weight controlling has been discussed.
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STEREOSPECIFIC POLYMERIZATION OF BUTADIENE CATALYZED BY NdCl3·2Phen-HAl(i-Bu)2 SYSTEM

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通讯作者: 陈斌, bchen63@163.com

STEREOSPECIFIC POLYMERIZATION OF BUTADIENE CATALYZED BY NdCl₃·2Phen-HAl(i-Bu)₂ SYSTEM