- Tytuł:
-
Związki kompleksowe chromu(III), wanadu(IV) i kobaltu(II) jako nowe prekatalizatory polimeryzacji olefin
Chromium(III), vanadium(IV) and cobalt(II) complex compounds as new olefin polymerization precatalysts - Autorzy:
- Drzeżdżon, Joanna
- Powiązania:
- https://bibliotekanauki.pl/articles/171572.pdf
- Data publikacji:
- 2020
- Wydawca:
- Polskie Towarzystwo Chemiczne
- Tematy:
-
chrom
wanad
kobalt
związki kompleksowe
prekatalizatory
polimeryzacja
chromium
vanadium
cobalt
complex compounds
precatalysts
polymerization - Opis:
- The olefin polymerization catalysts constitute a large group of various compounds. Metallocene complexes are the largest part of this group. However, due to the instability at industrial plastics temperatures and the decomposition of complexes after MAO (or MMAO) activation, they have been partly replaced by non-metallocene compounds. This article concerns the studies on new non- metallocene precatalysts for the olefin polymerization and oligomerization. The report focuses on the structure and the catalytic activities of the complexes of chromium(III), vanadium(IV) and cobalt(II) with the following ligands: dipicolinate, 2-pyridinecarboxylate, oxalate, oxydiacetate, iminodiacetate, 2,2’- bipyridine, 4,4’-dimethoxy-2,2’-bipyridine, 1,10-phenantroline. These complex compounds are highly active precatalysts for olefin polymerization and oligomerization. The complexes: [Cr(dipic)2][Cr(bipy)(dipic)H20]-2H20 and [Cr(dipic) 2]Hdmbipy2.5H20 deserve special attention because they are new type of the precatalysts i.e. organic salt type complexes composed both of organic cations and anions. These compounds are not only interesting because of their structure but also because of their high catalytic activity.
- Źródło:
-
Wiadomości Chemiczne; 2020, 74, 5-6; 423-437
0043-5104
2300-0295 - Pojawia się w:
- Wiadomości Chemiczne
- Dostawca treści:
- Biblioteka Nauki
Artykuł