Poly1-hexene OH-functionalization to prepare silica grafted poly1-hexene composites

In order to use poly1-hexene as coupling agent in polyolefin composites, a chain of poly1-hexene attached to inorganic materials should be presented. In this work we focused on functionalization of poly1-hexene to make nano-silica-poly1-hexene composites. To this end, first end unsaturated poly1-hexene was synthesized by using (Cp2ZrCl2/MAO) catalyst system then by employing meta-chloropeoxybenzoic acid (MCPBA) as an oxidizing agent this polymer were hydroxyl end functionalized. Then silica was grafted on it by simple etherification reaction of OH-poly1-hexene with OH-silica. Unsaturated structure of synthesized polymer was identified by 1H-NMR with CDCl3 as the solvent. In order to explore the accuracy of oxidation reaction and grafting of silica on the polymer chains, IR spectroscopy was employed

Keywords:

poly1- hexane , coupling agent , nanocomposite , functionalization , silica