橡胶技术网

合成橡胶工业
CHINA SYNTHETIC RUBBER INDUSTRY
2011 Vol.34 No.1 P.2-7

橡胶技术网

Lewis酸改性烷基锂负离子聚合研究进展Ⅴ.添加剂对烷基锂引发丁二烯或苯乙烯/丁二烯聚合的影响

王德充  梁爱民 

摘 要:介绍了Lewis酸添加剂对RLi在非极性溶剂中引发丁二烯或苯乙烯/丁二烯负离子聚合的影响.在Mg(n,s-Bu)2存在下,聚合物的1,2-结构含量随[Mg(n,s-Bu)2]/[RLi]的增大而增加.相反,Al(i-Bu)3/RLi体系对聚丁二烯微观结构的改变未产生任何影响,并且与s-BuLi的引发结果相同.对苯乙烯/丁二烯共聚的竞聚率测试结果表明,无论在Mg(n,s-Bu)2或Al(i-Bu)3体系存在下,所得产物均为类过渡型共聚物.
关键词:Lewis酸;丁二烯;1,2-结构含量;竞聚率;烷基锂;类过渡型共聚物
分类号:TQ316.32+4 文献标识码:A

文章编号:1000-1255(2011)01-0002-06

Progress in research of Lewis acids modified alkyllithium initiated anionic polymerizationⅤ.Influence of additives on alkyllithium initiators in anionic polymerization of butadiene or styrene/butadiene

Wang Dechong  Liang Aimin 

作者简介:王德充(1936-),男,教授级高级工程师,中国石化北京燕山分公司研究院技术顾问.
作者单位:王德充(中国合成橡胶工业协会,北京,100120) 
     梁爱民(中国石化北京燕山分公司,研究院,北京,102500) 

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收稿日期:2009年12月28日

修稿日期:2010年8月15日

出版日期:2011年1月15日