Comparisons Between Homogeneous and Immobilized 1-(2,6-dibenzhydryl-4-nitrophenylimino)-2-mesityliminoacenaphthylnickel Bromide as a Precatalyst in Ethylene Polymerization
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Journal of Catalysis
ISSN: 0021-9517
, E-ISSN: 1090-2694
|
| Вых. Данные |
Год: 2019,
Том: 372,
Страницы: 103-108
Страниц
: 6
DOI:
10.1016/j.jcat.2019.02.027
|
| Ключевые слова |
Nickel; Ethylene polymerization; Homogeneous catalysis; Heterogeneous catalysis; Kinetic data; α-Diimine |
| Авторы |
Huang Chuanbing
1,2,3,4
,
Zakharov Vladimir A.
3,4
,
Semikolenova Nina V.
3
,
Matsko Mikhail A.
3
,
Mahmood Qaiser
1,2
,
Talsi Evgenii P.
1,3
,
Sun Wen-Hua
1,2
|
| Организации |
| 1 |
Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
|
| 2 |
CAS Research/Education Center for Excellence in Molecular Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
|
| 3 |
Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
|
| 4 |
Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russian Federation
|
|
Информация о финансировании (7)
|
1
|
Российский фонд фундаментальных исследований
|
18-53-80031
|
|
2
|
National Natural Science Foundation of China
|
21871275
|
|
3
|
National Natural Science Foundation of China
|
5171102116
|
|
4
|
Служба приема в университеты и колледжи
|
[2015]37
|
|
5
|
Министерство науки и высшего образования Российской Федерации
|
ГЗ-2017-2020
|
|
6
|
National Natural Science Foundation of China
|
51861145303
|
|
7
|
Chinese Academy of Sciences
|
|
The 1-(2,6-dibenzhydryl-4-nitrophenylimino)-2-mesityliminoacenaphthylnickel bromide (1) is supported on the silica modified by adding different aluminum compounds. The immobilized catalysts show high activities toward ethylene polymerization being initiated by the co-catalyst either iBu3Al or Et2AlCl. The resultant polyethylenes display moderate branching (30–50 CH3/1000C) along with high molecular-weights (up to 1.5 × 106 g mol−1) as well as narrow molecular weight distributions (2.1–2.4). The kinetic study of immobilized catalysts has been conducted and compared with that of homogeneous 1/Et2AlCl system. The supported nickel catalysts produce spherical particles of branched PEs at slurry polymerization without reactor fouling and could be practically attractive.