Nature of polynuclear associates formed in catalytic systems of the Ziegler-Natta type

2013

Closed access Metadata (CSL-JSON)
DOI 10.3103/s1062873813060063
Data confidence 70 medium
How this score is calculated

It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.

Abstract

The formation of complexes in catalysts of the Ziegler-Natta type are studied virtually in situ using Mössbauer spectroscopy in combination with a quick-freezing technique. Information on the dynamics of the processes involved is acquired without perturbing the state of the systems under study. The mechanism of formation and the nature of the catalytically active complexes are investigated by a method that allows the condition of the catalyst to be observed without removing it from the reaction medium.