相关链接
联系方式
  • 通信地址:加拿大魁北克省蒙特利尔
  • 邮编:无
  • 电话:(514) 848-2424 ext.5611
  • 传真:
  • Email:zhibin.ye@concordia.ca
当前位置:> 首页 > 论文著作 > 正文
Melt rheological properties of branched polyethylenes produced with Pd/Ni diimine catalysts
作者:Z. Ye, S. Zhu*
关键字:Branched polyethylene, Chain topology, Chain walking polymerization, Hyperbranched, Rheology
论文来源:期刊
具体来源:Macromolecular Chemistry and Physics
发表时间:2004年
A tandem catalytic system, composed of (η5‐C5H4CMe2C6H5)TiCl3 (1)/MMAO (modified methyl aluminoxane) and [(η5‐C5Me4)SiMe2(tBuN)]TiCl2 (2)/MMAO, was applied for the synthesis of ethylene–hex‐1‐ene copolymers with ethylene as the only monomer stock. During the reaction, 1/MMAO trimerized ethylene to hex‐1‐ene, while 2/MMAO copolymerized ethylene with the in situ produced hex‐1‐ene to poly(ethylene–hex‐1‐ene). By changing the catalyst ratio and reaction conditions, a series of copolymer grades with different hex‐1‐ene fractions at high purity were effectively produced.