Write an introduction on the Ziegler-Natta catalyst and process for olefin polymerization and copolymerization using novel supported polymeric materials like PVC .

write an introduction on the Ziegler-Natta catalyst and process for olefin polymerization and copolymerization using novel supported polymeric materials like PVC . The introduction includes:
• Traditional olefin polymerization catalysts using supports such as silica or magnesium chloride.