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Mechanical termination in stereospecific polymerization with heterogeneous complex catalysts

✍ Scribed by Yu.V. Kissin

Book ID
118358752
Publisher
Elsevier Science
Year
1969
Weight
721 KB
Volume
11
Category
Article
ISSN
0032-3950

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There is further consideration of the model of the active site of polymerization on heterogeneous Ziegler-Natta catalysts. It is located on basal planes of lattice crystals of type a-TiCl3 or VCI3 and has two vacancies at the transition metal atom. One of these vacancies is blocked by the helical po

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A~traet--Temperature dependences of the stereoregularity parameters of the most stereospecific active centres of =-TiCI3:AIEt 3 catalytic system from -25 to 120 and of VCI3--AIEt 3 catalytic system from -15: to 90 c have been measured. It was found that this temperature dependence could be represent