6533b828fe1ef96bd1288c7a

RESEARCH PRODUCT

Magnesium chloride modified with organoaluminium compounds as a support of the zirconocene catalyst for ethylene polymerisation

Maria NowakowskaWioletta Ochędzan-siodłak

subject

ZirconiumPolymers and PlasticsMagnesiumOrganic ChemistryGeneral Physics and Astronomychemistry.chemical_elementPolyethyleneHeterogeneous catalysisCatalysischemistry.chemical_compoundchemistryCyclopentadienyl complexPolymer chemistryMaterials ChemistryMolar mass distributionMetallocene

description

Abstract This work describes the influence of the modification of the MgCl2(THF)2 and MgCl2 magnesium supports with the AlEt2Cl, MAO, AlEt3, AlMe3, and AlEt2Cl alkylaluminium compounds on heterogenisation of the bis(cyclopentadienyl) zirconium(IV) dichloride Cp2ZrCl2 catalyst. It was found that only the MgCl2(THF)2 support modified with AlEt2Cl gave the heterogeneous catalyst. On the contrary, application of a magnesium carrier modified by AlEt3, AlMe3, and MAO compounds only results in a homogeneous zirconocene catalyst.

https://doi.org/10.1016/j.eurpolymj.2003.12.003