茂金属催化剂催化丙烯与乙烯共聚合研究  

Propylene-ethylene copolymerization catalyzed by metallocene catalyst

作　　者：王国栋 方园园[1] 宋文波[1] Wang Guodong;Fang Yuanyuan;Song Wenbo(SINOPEC(Beijing)Research Institute of Chemical Industry Co.,Ltd.,Beijing 100013,China)

机构地区：[1]中石化(北京)化工研究院有限公司,北京100013

出　　处：《合成树脂及塑料》2024年第2期7-10,15,共5页China Synthetic Resin and Plastics

摘　　要：以桥联茂金属催化剂催化丙烯与乙烯共聚合,探究了助催化剂、反应温度、共聚单体用量、n(Al)∶n(Zr)和n(B)∶n(Zr)等对丙烯与乙烯共聚合及聚合物结构与性能的影响,优化了间歇溶液聚合的工艺参数,制备了丙烯-乙烯无规共聚物。在合适条件下,该催化体系的活性最高达2.05×10^(7)g/(mol·h)。溶液聚合小试最佳工艺条件:反应温度为70℃,n(Al)∶n(Zr)=150,n(B)∶n(Zr)=1.5。Bridged metallocene catalyst was used as the main catalyst to explore the effects of process conditions such as cocatalysts,polymerization temperature,comonomer concentration,n(Al)∶n(Zr)and n(B)∶n(Zr)on propylene-ethylene copolymerization and polymer structure and properties.The process parameters of intermittent solution polymerization were optimized to prepare propylene-ethylene random copolymer with the highest activity of 2.05×10^(7)g/(mol·h).The optimal process conditions of solution polymerization are as follows:the temperature is 70℃,n(Al)∶n(Zr)=150,n(B)∶n(Zr)=1.5.

关 键 词：茂金属催化剂 丙烯 乙烯 共聚合 丙烯基弹性体 

分 类 号：TQ426.94[化学工程]