ICCAS OpenIR
Novel vanadium(III) complexes with bidentate N,N-chelating iminopyrrolide ligands: synthesis, characterization and catalytic behaviour of ethylene polymerization and copolymerization with 10-undecen-1-ol
Xu, Bao-Chang1,2; Hu, Tao1; Wu, Ji-Qian1,2; Hu, Ning-Hai1; Li, Yue-Sheng1
2009
Source PublicationDALTON TRANSACTIONS
ISSN1477-9226
Issue41Pages:8854-8863
AbstractA series of novel vanadium(III) complexes bearing iminopyrrolide chelating ligands [2-(RN=CH)C(4)H(3)N]V(THF)(2)Cl(2) (2a: R = cyclohexyl; 2b: R = Ph; 2c: R = 2,6-iPr(2)C(6)H(3); 2d: R = p-CF(3)C(6)H(4); 2e: R = C(6)F(5)) have been synthesized and characterized. Single-crystal X-ray diffraction revealed that complexes 2a, 2c and 2e adopt an octahedral geometry around the vanadium center. In the presence of Et(2)AlCl as a co-catalyst, these complexes displayed high catalytic activities up to 48.6 kg PE mmol(V)(-1) h(-1) bar(-1) for ethylene polymerization, and produced high molecular weight polymers. 2a-e/Et(2)AlCl catalytic systems were tolerant to elevated temperature (70 degrees C) and yielded unimodal polyethylenes, indicating the single site behaviour of these catalysts. By pre-treating with equimolar amounts of alkylaluminums, functional alpha-olefin 10-undecen-1-ol can be efficiently incorporated into polyethylene chains. 10-Undecen-1-ol incorporation can easily reach 15.8 mol% under the mild conditions. When compared with VCl(3)(THF)(3) or rac-Et[Ind](2)ZrCl(2), these vanadium(III) complexes exhibited higher activities towards the copolymerization, and can incorporate more 10-undecen-1-ol into polymer chains under the similar conditions.
DOI10.1039/b909495d
Indexed BySCI
Language英语
WOS IDWOS:000270761900011
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:35[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/67508
Collection中国科学院化学研究所
Corresponding AuthorLi, Yue-Sheng
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Sch, Changchun Branch, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Xu, Bao-Chang,Hu, Tao,Wu, Ji-Qian,et al. Novel vanadium(III) complexes with bidentate N,N-chelating iminopyrrolide ligands: synthesis, characterization and catalytic behaviour of ethylene polymerization and copolymerization with 10-undecen-1-ol[J]. DALTON TRANSACTIONS,2009(41):8854-8863.
APA Xu, Bao-Chang,Hu, Tao,Wu, Ji-Qian,Hu, Ning-Hai,&Li, Yue-Sheng.(2009).Novel vanadium(III) complexes with bidentate N,N-chelating iminopyrrolide ligands: synthesis, characterization and catalytic behaviour of ethylene polymerization and copolymerization with 10-undecen-1-ol.DALTON TRANSACTIONS(41),8854-8863.
MLA Xu, Bao-Chang,et al."Novel vanadium(III) complexes with bidentate N,N-chelating iminopyrrolide ligands: synthesis, characterization and catalytic behaviour of ethylene polymerization and copolymerization with 10-undecen-1-ol".DALTON TRANSACTIONS .41(2009):8854-8863.
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