不同钛催化体系引发异戊二烯聚合  

Effect of polymerization of poly-isoprene with different catalysts

作　　者：张合霞[1] 马骥[2] 姚薇[2] 黄宝琛[2] 

机构地区：[1]天津市橡胶工业研究所,天津300384 [2]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《弹性体》2008年第6期5-8,共4页China Elastomerics

基　　金：国家自然科学基金资助项目(20674042)

摘　　要：初步考察了不同的催化体系以及聚合条件对异戊二烯聚合催化效率的影响,并通过红外和核磁共振谱图表征了聚合产物的微观结构。结果表明,采用负载钛和钛酸酯催化剂并用双组分体系引发异戊二烯聚合时,聚合产物中3,4-结构含量较高,其它3种负载催化剂引发生成的聚异戊二烯大部分为1,4-结构,3,4-结构含量甚微。The effects of catalyst systems and polymerization conditions on isoprene polymerization efficiency were preliminarily studied. Further more polymer microstructures were characterized by IR and NMR. The results showed that the content of 3,4-structure was more when adopting supported titanium catalysts and titanate catalysts in polymerization. By contrast the polymer was mostly trans-1,4 unit, but the content of 3,4-unit was rather little when the other three catalyst systems were adopted.

关 键 词：负载钛 钛酸酯 催化剂制备 异戊二烯聚合 

分 类 号：TQ333.3[化学工程—橡胶工业]