%0 Journal Article %T Activation of Ziegler-Natta catalyst by organohalide promoters: A combined experimental and density functional theory study %A N.Bahri %A H. Arabi %A S. Mehdipor %A M. Nekoomanesh %A M. Seifali %A Z.Akbari %A Zohuri, Gholamhossein %J Journal of Applied Polymer Science %@ 0021-8995 %D 2012