Effect of triethylaluminum/transition-metal ratio on the physical properties and chemical composition distributions of ethylene-hexene copolymers produced by a rac-Et(Ind)2ZrCl2/TiCl4/MAO/SMB Catalyst

Chemical composition distributions and m

Chemical composition distributions and microstructures of ethylene–hexene copolymers produced by a rac-Et(Ind)2ZrCl2/TiCl4/MAO/SMB catalyst

✍ Hai Woong Park; Jin Suk Chung; Seong Soo Lim; In Kyu Song 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 336 KB

A silica-magnesium bisupport (SMB) was prepared by a sol-gel method for use as a support for a metallocene/Ziegler-Natta hybrid catalyst. The SMB was treated with methylaluminoxane (MAO) prior to the immobilization of TiCl 4 and rac-Et(Ind) 2 ZrCl 2 . The prepared rac-Et(Ind) 2 ZrCl 2 /TiCl 4 /MAO/S