By means of Tyndall effect investigation

electromicroscope observation

electroconductivity measurement

and in combination with the consideration of the polymerization experiment result

it was found that Fe(naph)2 Al(i Bu)3—CH2=CHCH2Cl despersed in hydrogenated gasoline medium was a coalescence unstable colloidal catalyst system.Component ratios and feeding order of catalyst affected the form of the colloidal particles and further affected the catalytic activity and the microstructure of polymer.The optimal component ratio and feeding order were found to be [Fe]:[Cl]:[Al]:=1:2.5:20

and the catalytic were tiny and uniform

so the specifical surface area was large and the catalytic activity was high.But it was not so for other ratios.