氢化SBS结构与组成的表征  

The characterize of microscopic structure and constitutes of hydrogenated SBS

作　　者：梅铭[1] 李蕾[1] 戴立平 张红星 李望明 张志斌 

机构地区：[1]北京化工大学理学院化学系,北京100029 [2]岳阳石油化工总厂合成橡胶厂,岳阳湖南414014

出　　处：《弹性体》2004年第1期20-24,共5页China Elastomerics

基　　金：国家"十五"863项目(2003AA333020);岳阳石化橡胶厂产业化项目。

摘　　要：以茂钛催化剂体系对线型苯乙烯 丁二烯三嵌段共聚物(SBS)加氢得到的氢化SBS胶样为研究系统,采用1H NMR、UV和碘量法分别分析了SBS及SEBS中各质子归属,聚合物各结构的含量以及胶样的加氢度,并通过FTIR评价了茂金属催化SBS加氢反应特点。表明1,2 结构的加氢反应活性较1,4 结构加氢反应活性高。The hydrogenated styrene-butadiene-styrene block copolymer samples catalyzed by novel titanocene were characterized by UV,()~1H-NMR cosy spectra and iodimetry,and their proton jurisdiction,the constitutes of polymers and hydrogenation degree of copolymer samples were determined.The characteristic of SBS hydrogenation reaction with titanocene catalyst was analyzed in terms of FTIR.it indicated that the hydrogenation activation of 1,2-PB units is higher than that of 1,4-PB units.

关 键 词：苯乙烯-丁二烯三嵌段共聚物 热塑性弹性体 SBS 加氢 表征 茂钛催化剂 微观结构 

分 类 号：TQ334[化学工程—橡胶工业]