(alpha-diimine)nickel(II) catalysts;
oligomerization;
alpha-olefins;
oligomerization conditions;
Lewis bases;
additives;
D O I:
10.1002/app.12308
中图分类号:
O63 [高分子化学(高聚物)];
学科分类号:
070305 ;
080501 ;
081704 ;
摘要:
Modified (alpha-diimine)nickel(II) catalysts are suitable for ethylene oligomerization reactions. Due to the mechanism ("chain running"), the formation of double-bond isomers and branched olefins can be observed. The obtained oligomer mixtures show a Schulz-Flory distribution. Increasing ethylene pressure favors the selectivity of a-olefin formation. The same effect can be observed when Lewis bases like thiophene or furane are added to the oligomer-ization reaction mixture. These results can be related to an interaction of the additives with the catalytic active species during the oligomerization process. (C) 2003 Wiley Periodicals, Inc.
机构:
Univ Fed Rio Grande Sul UFRGS, Inst Quim, Lab Reatividade & Catalise LRC, Av Bento Goncalves 9500,Campus Vale, BR-91501970 Agronomia, RS, BrazilUniv Fed Rio Grande Sul UFRGS, Inst Quim, Lab Reatividade & Catalise LRC, Av Bento Goncalves 9500,Campus Vale, BR-91501970 Agronomia, RS, Brazil
Variani, Yuri M.
Lopes, Christian W.
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Univ Fed Rio Grande Sul UFRGS, Inst Quim, Lab Reatividade & Catalise LRC, Av Bento Goncalves 9500,Campus Vale, BR-91501970 Agronomia, RS, BrazilUniv Fed Rio Grande Sul UFRGS, Inst Quim, Lab Reatividade & Catalise LRC, Av Bento Goncalves 9500,Campus Vale, BR-91501970 Agronomia, RS, Brazil
Lopes, Christian W.
Nicola, Bruna P.
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Univ Fed Rio Grande Sul UFRGS, Inst Quim, Lab Reatividade & Catalise LRC, Av Bento Goncalves 9500,Campus Vale, BR-91501970 Agronomia, RS, BrazilUniv Fed Rio Grande Sul UFRGS, Inst Quim, Lab Reatividade & Catalise LRC, Av Bento Goncalves 9500,Campus Vale, BR-91501970 Agronomia, RS, Brazil
Nicola, Bruna P.
Meira, Debora M.
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机构:
Argonne Natl Lab, Adv Photon Source, CLS APS Sect 20,9700 S Cass Ave, Argonne, IL 60439 USA
Canadian Light Source Inc, 44 Innovat Blvd, Saskatoon, SK S7N 2V3, CanadaUniv Fed Rio Grande Sul UFRGS, Inst Quim, Lab Reatividade & Catalise LRC, Av Bento Goncalves 9500,Campus Vale, BR-91501970 Agronomia, RS, Brazil
Meira, Debora M.
Pergher, Sibele B. C.
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机构:
Univ Fed Rio Grande Norte UFRN, Inst Quim, Lab Peneiras Mol LABPEMOL, Av Senador Salgado Filho 3000, BR-59078970 Natal, RN, BrazilUniv Fed Rio Grande Sul UFRGS, Inst Quim, Lab Reatividade & Catalise LRC, Av Bento Goncalves 9500,Campus Vale, BR-91501970 Agronomia, RS, Brazil
Pergher, Sibele B. C.
Bernardo-Gusmao, Katia
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Univ Fed Rio Grande Sul UFRGS, Inst Quim, Lab Reatividade & Catalise LRC, Av Bento Goncalves 9500,Campus Vale, BR-91501970 Agronomia, RS, BrazilUniv Fed Rio Grande Sul UFRGS, Inst Quim, Lab Reatividade & Catalise LRC, Av Bento Goncalves 9500,Campus Vale, BR-91501970 Agronomia, RS, Brazil