This article reviews the recent developments of Ziegler-Natta and metallocene catalysts for
olefin polymerizations. The roles of magnesium dichloride and electron donors on the …

The stopped‐flow method, by which a quasi‐living polymerization process can be realized
within an extremely short period (ca. 0.2 s), has been proven to be one of the most powerful …

The stereosequence distribution of the “atactic” and “isotactic” fractions of a polypropylene
sample made with a MgCl2-supported catalyst was determined by means of high-resolution …

Industrial Ziegler–Natta catalysts for polypropylene production are complex formulations
with a reputation for being “black boxes”. In this paper, we report the results of an extensive …

In this work a new model for the polymerization of olefins in a loop reactor is presented. The
reactor is modelled as two tubular reactors interconnected. In contrast to the traditional …

Three diethers, 2, 2-diisobutyl-1, 3-dimethoxypropane, 2, 2-dicyclopentyl-1, 3-
dimethoxypropane, and 2-ethyl-2-butyl-1, 3-dimethoxypropane, differing in the bulkiness of …

The adsorption of TiCl4 on the surfaces of MgCl2 crystals has been investigated by means
of state-of-the-art periodic hybrid DFT methods, as the first step of a comprehensive study …

Three kinds of MgCl2‐supported TiCl4 catalysts (ester‐free, ethyl benzoate (EB, monoester)
and dibutyl phthalate (DNBP, diester) as internal donors) were prepared. Polymerization of …

Poly (propylene) s prepared using MgCl2‐supported catalysts containing different electron
donors have been characterized using temperature rising elution fractionation (TREF), gel …

In this work we address the problem of isotacticity in a realistic heterogeneous Ziegler−
Natta system by means of ab initio molecular dynamics. We focus on a previously identified …