A comparison was made between powder X-ray diffraction in the reflection Bragg-Brentano geometry and in the transmission Seemann-Bohlin one, for metallic di- and trichlorides samples dealing with Ziegler-Natta catalysis for olefin polymerization and showing a lamellar crystal morphology. The preferred orientation phenomena, which are particularly evident in the reflection technique, can give strong troubles in structural examination of these samples. An appreciable decrease of these phenomena can be reached by using the transmission method.

X-ray diffraction measurements and preferred orientation phenomena in the preparation of Ziegler-Natta catalysts

MAREGA, CARLA;MARIGO, ANTONIO;ZANNETTI, ROBERTO;DI NOTO, VITO
1991

Abstract

A comparison was made between powder X-ray diffraction in the reflection Bragg-Brentano geometry and in the transmission Seemann-Bohlin one, for metallic di- and trichlorides samples dealing with Ziegler-Natta catalysis for olefin polymerization and showing a lamellar crystal morphology. The preferred orientation phenomena, which are particularly evident in the reflection technique, can give strong troubles in structural examination of these samples. An appreciable decrease of these phenomena can be reached by using the transmission method.
1991
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/123872
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact