Influence of cocatalyst nature on Ethylene Polymerization by a Nickel–Diimine Complex

The improvement of ethylene polymerization catalyst was studied in this research. 1,4-bis(2,6- diisopropylphenyl)-acenaphthene diimine diboromo nickel (II) complex (1) activated with ethylaluminium sesquichloride (EASC) and triisobutyl aluminum (TIBA). The effect of parameters (temperature, ethylene pressure and cocatalyst to catalyst molar ratio (CC)) on the polymerization process has been investigated using regression models of responses molecular weight polyemer, and visualize via the response surface method (RSM). The results indicated that, the same polymerization condition has been reported for reaching the maximum Molecular wieght with TIBA

Keywords:

Nickel (II) α–diimine complex , Ethylene , Chorine-free alkyl almminum , Response Surface method(RSM) , Surface and contour plot