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Ethylene polymerization by (alpha-diimine)nickel(II) complexes bearing different substituents on para-position of imines activated with MMAO
Liu, Jingyu; Li, Yanguo; Li, Yuesheng; Hu, Ninghai
2008-07-15
Source PublicationJOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
Volume109Issue:2Pages:700-707
AbstractA series of (alpha-diimine)nickel(II) complexes [ArN = C(Nap)C = NAr]NiBr2 (Nap = 1,8-naphthdiyl, Ar = 2,6-Me2C6H3, 3a; Ar = 2,4,6-Me3C6H2 3b; Ar = 2,6-Me-2-4-tBuC(6)H(2), 3c; Ar 2,6-Me-2-4-BrC6H2, 3d; Ar = 2,6-Me-2-4-ClC6H2, 3e; Ar 2,6-iPr(2)C(6)H(3), 3f; Ar = 2,4,6-iPr(3)C(6)H(2), 3g; Ar = 2,6-iPr-4-BrC6H2, 3h) have been synthesized, characterized, and investigated as precatalysts for ethylene polymerization in the presence of modified methylaluminoxane (MMAO). The substituents of a-diimine ligands and their positions located significantly influence catalyst activity and polymer property. It is found that the catalytic activities of the nickel complex/MMAO systems and the microstructure of the polymer obtained are dominated by not only hindering effect of ortho-position substituents but also electronical effect of para-position substituents. (C) 2008 Wiley Periodicals, Inc.
KeywordZiegler-natta Polymerization Catalyst Polyolefins
DOI10.1002/app.28134
Indexed BySCI
Language英语
WOS IDWOS:000256267200003
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/65224
Collection中国科学院化学研究所
Corresponding AuthorLi, Yuesheng
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Liu, Jingyu,Li, Yanguo,Li, Yuesheng,et al. Ethylene polymerization by (alpha-diimine)nickel(II) complexes bearing different substituents on para-position of imines activated with MMAO[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2008,109(2):700-707.
APA Liu, Jingyu,Li, Yanguo,Li, Yuesheng,&Hu, Ninghai.(2008).Ethylene polymerization by (alpha-diimine)nickel(II) complexes bearing different substituents on para-position of imines activated with MMAO.JOURNAL OF APPLIED POLYMER SCIENCE,109(2),700-707.
MLA Liu, Jingyu,et al."Ethylene polymerization by (alpha-diimine)nickel(II) complexes bearing different substituents on para-position of imines activated with MMAO".JOURNAL OF APPLIED POLYMER SCIENCE 109.2(2008):700-707.
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