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Finely tuned nickel complexes as highly active catalysts affording branched polyethylene of high molecular weight: 1-(2,6-Dibenzhydryl-4-methoxyphenylimino)-2-(arylimino) acenaphthylenenickel halides
Wu, RK; Wang, YF; Zhang, RD; Guo, CY; Flisak, Z; Sun, Y; Sun, WH
2018-09-26
Source PublicationPOLYMER
ISSN0032-3861
Volume153Pages:574-586
AbstractA series of unsymmetrical 1,2-bis(imino) acenaphthenenickel(II) halides containing N-2,6-dibenzhydryl-4-methoxyphenyl - a single bulky group with adjusted electron donating properties - has been synthesized and characterized. These compounds adopt distorted tetrahedral geometry and their H-1 NMR spectra show the paramagnetically shifted peaks. On activation with a low amount of Et2AlCl or ethylaluminum sesquichloride ( EASC), these nickel complexes display high activity in ethylene polymerization, yielding the polyethylene of high molecular weight. They are also stable at elevated temperature; superb activity of 2.51 x 10(6) g of PE (mol of Ni)(-1) h(-1) can be attained at 90 degrees C. The resultant polyethylene exhibits remarkable tensile strength of 24.5 MPa and high elongation at break (602.2%) as well as substantial elastic recovery.
KeywordEthylene polymerization Branched polyethylene Thermoplastic elastomer
MOST Discipline CataloguePolymer Science
DOI10.1016/j.polymer.2018.08.056
Indexed BySCI
Language英语
WOS SubjectPolymer Science
WOS IDWOS:000445783300063
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/41964
Collection工程塑料实验室
Affiliation1.Guo, CY (reprint author), Univ Chinese Acad Sci, Sch Chem Sci, Beijing 100049, Peoples R China.
2.Sun, WH (reprint author), Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China.
3.Sun, WH (reprint author), Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China.
4.Flisak, Z (reprint author), Univ Opole, Fac Chem, Oleska 48, PL-45052 Opole, Poland.
Recommended Citation
GB/T 7714
Wu, RK,Wang, YF,Zhang, RD,et al. Finely tuned nickel complexes as highly active catalysts affording branched polyethylene of high molecular weight: 1-(2,6-Dibenzhydryl-4-methoxyphenylimino)-2-(arylimino) acenaphthylenenickel halides[J]. POLYMER,2018,153:574-586.
APA Wu, RK.,Wang, YF.,Zhang, RD.,Guo, CY.,Flisak, Z.,...&Sun, WH.(2018).Finely tuned nickel complexes as highly active catalysts affording branched polyethylene of high molecular weight: 1-(2,6-Dibenzhydryl-4-methoxyphenylimino)-2-(arylimino) acenaphthylenenickel halides.POLYMER,153,574-586.
MLA Wu, RK,et al."Finely tuned nickel complexes as highly active catalysts affording branched polyethylene of high molecular weight: 1-(2,6-Dibenzhydryl-4-methoxyphenylimino)-2-(arylimino) acenaphthylenenickel halides".POLYMER 153(2018):574-586.
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