1.1. Inspired by Nature In many enzymes, such as ureases (Figure 1), two or more metal
centers are poised in close proximity to activate both electrophilic and nucleophilic …

This contribution describes the synthesis and polymerization characteristics of the covalently
linked heterobinuclear constrained-geometry polymerization catalyst (μ-CH2CH2-3, 3 '){(η5 …

Heterogeneous catalysts have long dominated polyethylene and polypropylene production,
but understanding their catalysis is challenged by uncertainties in active site structures and …

This chapter introduces classical nucleation theory (CNT), describes experimental
approaches, and discusses the results of direct observation of nanonucleation. Kinetic …

“How do chain molecules spontaneously entangle from completely disentangled polymer
melt?” remains the most interesting unsolved problem. In order to solve this problem, we …

Isotactic Polypropylene (iPP)-sepiolite nanocomposites were prepared by in situ
polymerization using nanoclays as support of the catalytic system. This study proposes a …

The polymerization catalyst systems of the invention including a poor comonomer
incorporating metallocene catalyst compound and a good comonomer incorporating …

Synthesis of polyethylene/silica-silver nanocomposites (PE/SiAg) by in situ polymerization
with supported and non-supported catalysts was achieved using the Cp 2 ZrCl 2/MAO …

This paper describes the synthesis of a covalently linked oxygen-bridged heterobimetallic
complex of zirconium and titanium (2) by using the precursors Cp* 2ZrMe (OH)(1) and Cp …

The use of graphite and polyolefins as starting materials to prepare nanocomposites is
convenient because both are inexpensive and have very different properties, one is …