磷酸三异辛酯对钼系催化体系催化丁二烯聚合的影响(英文)  

Effect of triisooctyl phosphate on synthesis of high vinyl polybutadiene with molybdenum-based catalyst

作　　者：孙彦杰[1] 华静[1] 徐玲[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》2014年第4期326-326,共1页China Synthetic Rubber Industry

基　　金：Supported by Natural Science Foundation of Shandong Province(ZR 2011 EL 008);Science and Technology Development Project of Qingdao(13-1-4-133 jch)

摘　　要：研究了作为配体的磷酸三异辛酯的加入对二氯二氧钼/间甲酚铝催化体系催化丁二烯聚合的影响。结果表明,磷酸三异辛酯与二氯二氧钼反应生成了新的化合物,在磷酸三异辛酯/二氯二氧钼(摩尔比)为2时完全反应,且此时催化活性最高。当磷配体用量继续增加时出现了游离的磷酸三异辛酯,而催化体系的催化活性和聚合物的相对分子质量随之降低。聚合产物为高乙烯基聚丁二烯,1,2-结构摩尔分数为89.7%且呈无规分布。High vinyl polybutadiene rubber（HVPBR） has some merits, such as good wet skid resistance, lower heat build-up and good aging-resistance. It is one of important energy-saving materials to make high performanee tire. The molybdenum compounds are effective catalysts for synthesis of amorphous HVPBR in non-toxic hydrogenated gaso- line. It is well known that addition of electron donor is favourable to the improvement of catalyst activity and the stereo-selectivity of polymer. In this study, the synthesis of HVPBR catalyzed by molybdenum （ Ⅵ ） dichloride dioxide（ MoO2Cl2 ） （ Mo）, triisooctyl phosphate（P） and m-cresol substituted triisobutylaluminum （Al） system was reported for the first time.

关 键 词：高乙烯基聚丁二烯 磷酸三异辛酯 钼催化体系 催化活性 

分 类 号：O643.32[理学—物理化学]