Studies on chain transfer reaction in butadiene polymerization initiated with n-butyl lithium and novel promoter potassium para-methylphenoxide

被引:1
|
作者
Yang, X [1 ]
Wang, YR [1 ]
Jia, JS [1 ]
机构
[1] Dalian Univ Technol, Coll Chem Engn, Dept Polymer Mat, Dalian 116012, Peoples R China
关键词
anionic polymerization; polybutadiene; chain transfer; polymerization kinetics; molecular weight distribution;
D O I
10.1002/app.21312
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The chain transfer reaction was examined in the anionic telomerization of butadiene with n-BuLi as the initiator, potassium para-methylphenoxide (ROK) as the novel promoter, mixed xylene as the transfer agent as well as a solvent in the presence of diglyme as the polar modifier. Effects of ROK, diglyme, and the polymerizing temperature were studied. It was demonstrated that they all promote the chain transfer reaction. The relative constant of chain transfer to the solvent was also calculated. (C) 2005 Wiley Periodicals, Inc.
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页码:1215 / 1218
页数:4
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