Titlebook: History of Polyolefins; The World’s Most Wid Raymond B. Seymour,Tai Cheng Book 1986 Springer Science+Business Media Dordrecht 1986 catalysi

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,The Development of High Activity Catalysts in α-Olefin Polymerization,olymer science during the past twenty-five years. In the polymerization of propylene catalyst activities have improved from values of 5–10 kg/gTi to values in excess of 1,000 kg/gTi within a comparatively short period of time. This dramatic increase in catalyst activity has been made possible by a n

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The Role of Mgcl2 on the Activity of Olefin Polymerization,a small amount of MgCl.(Mg/Ti≳2) resulted in a remarkable enhancement of the activity. Propylene polymerization was then carried out with the soluble Ti(OBu) ./AlEt.Cl catalyst combined with a variety of metal chlorides (MCl.). A clear relation was found between the activity and the electronegativit

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