用MoCl_5/TBP/Al(OPhCH_3)(i-Bu)_2催化聚合1,2-聚丁二烯(英文)  

Synthesis of high vinyl polybutadiene rubber catalyzed by MoCl_5/tributyl phosphate/Al(OPhCH_3)(i-Bu)_2

作　　者：田维[1] 徐海兵[1] 田健[1] 徐玲[1] 华静[1] 

机构地区：[1]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：《合成橡胶工业》2009年第1期75-75,共1页China Synthetic Rubber Industry

基　　金：Supported by National Science Foundation ofChina (50603009)

摘　　要：研究了用MoCl5( MoTBP)-Al(OPhCH3)(i-Bu)2催化体系催化丁二烯聚合的规律,并与MoCl3(OC8H17)2-Al(OPhCH3)(i-Bu)2体系进行了比较。结果表明,与辛醇体系相比,该催化体系聚合活性高,产物相对分子质量下降近一半,相对分子质量分布加宽,1,2-结构摩尔分数为86.6%,且以等规结构(摩尔分数为53.3%)为主。Molybdenum catalyst is one of the best catalysts for high vinyl polybutadiene rubber. The investigation of this catalyst system has mainly focused on MoCl3 substituted by alcohol （especially n-octanol）, and with carbonic ester as the additive But the catalyst activity remains to be improved, and the high relative molecular mass and its narrow distribution of the resulted polymer make it difficult to be processed. In this paper, with a Mo （ V ） catalyst system, modified MoCI5 with tributyl phosphate （ Morap ） , as catalyst, and Al（ OPhCH3 ） （ i-Bu ） 2 as co-catalyst （ Al ） , the 1,2-polybutadiene was researched.

关 键 词：磷酸三丁酯 丁二烯 1 2-聚丁二烯 相对分子质量 相对分子质量分布 

分 类 号：TQ316.314[化学工程—高聚物工业]