Study on morphology of polyethylene obtained using homogeneous and supported nickel α-diimine catalyst

Supported catalyst was prepared by the addition of trialkylaluminum to a slurry of adduct MgCl2.nEtOH and subsequent mixing with catalyst. Immobilization of late transition metal catalyst (LMC) is supposed to provide polyethylene with different microstructure and morphology. Polymerization of ethylene was conducted at temperature of 50 °C using supported and homogeneous LMC. DSC, XRD and SEM data showed that the crystalline structure is dramatically changed upon catalyst immobilization over MgCl2

کلیدواژه ها:

Morphology ، polyethylene ، homogeneous ، support ، LMC catalyst ، MgCl2