Synthesis, characterization and ethylene polymerization of 1-(2,6-dimethy1-4-fluorenylphenylimino)-2-aryliminoacenaphthylnickel bromides | |
Department | OSSO国家重点实验室 |
Katla, Venkataramana1; Yue, Erlin1; Rajendran, Natesan Mannangatti1; Liang, Tongling1; Sun WH(孙文华)1,2; Sun WH(孙文华) | |
2016 | |
Source Publication | Comptes Rendus Chimie
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ISSN | 1631-0748 |
Volume | 19Issue:5Pages:604-613 |
Abstract | A series of 1-(2,6-dimethyl-4-fluorenylphenylimino)-2-aryliminoacenaphthylene compounds (aryl = 2,6-di(Me)Ph (L1), 2,6-di(Et)Ph (L2), 2,6-di(i-Pr)Ph (L3), 2,4,6-tri(Me)Ph (L4), 2,6-di(Et)-4-MePh (L5)) was prepared and used to form their corresponding dibromonickel complexes (D1–D5). Both L1–L5 and D1–D5 were fully characterized by FT-IR and elemental analysis as well as NMR measurements in the case of ligands L1–L5. The molecular structure of the representative complex D5 was confirmed by single crystal X-ray diffraction revealing a distorted trigonal bipyramidal geometry around the nickel center. On activation with either ethylaluminium sesquichloride (Et3Al2Cl3, EASC) or methylaluminoxane (MAO), all nickel complexes exhibited high activities up to 9.82 × 106 g of PE (mol of Ni)−1 h−1 for ethylene polymerization. In comparison with the polyethylenes obtained with related Ni pre-catalysts, the polyethylenes obtained in this work possessed relatively higher molecular weights and lower levels of branching, highlighting the significant influence of the remote fluorenyl substituent. |
Keyword | Acenaphthylene Ligand Ni(Ii) Complex Ethylene Polymerization Lesser Branched Polyethylene |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1016/j.crci.2016.01.005 |
Funding Organization | National Natural Science Foundation of China (NSFC Nos. 21374123;U1362204) |
Indexed By | SCI |
If | 1.879 |
Language | 英语 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/20984 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Sun WH(孙文华) |
Affiliation | 1.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Katla, Venkataramana,Yue, Erlin,Rajendran, Natesan Mannangatti,et al. Synthesis, characterization and ethylene polymerization of 1-(2,6-dimethy1-4-fluorenylphenylimino)-2-aryliminoacenaphthylnickel bromides[J]. Comptes Rendus Chimie,2016,19(5):604-613. |
APA | Katla, Venkataramana,Yue, Erlin,Rajendran, Natesan Mannangatti,Liang, Tongling,Sun WH,&孙文华.(2016).Synthesis, characterization and ethylene polymerization of 1-(2,6-dimethy1-4-fluorenylphenylimino)-2-aryliminoacenaphthylnickel bromides.Comptes Rendus Chimie,19(5),604-613. |
MLA | Katla, Venkataramana,et al."Synthesis, characterization and ethylene polymerization of 1-(2,6-dimethy1-4-fluorenylphenylimino)-2-aryliminoacenaphthylnickel bromides".Comptes Rendus Chimie 19.5(2016):604-613. |
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