ICCAS OpenIR
Synthesis, structure and ethylene (co)polymerization behavior of new nonbridged half-metallocene-type titanium complexes based on bidentate beta-enaminoketonato ligands
Liu, San-Rong1,2; Li, Bai-Xiang1,2; Liu, Jing-Yu1; Li, Yue-Sheng1
2010-04-20
Source PublicationPOLYMER
ISSN0032-3861
Volume51Issue:9Pages:1921-1925
AbstractA series of novel half-metallocene-type titanium complexes CpTiCl(2)[PhN=C(R(2))CHC(R(1))O] (2a, R(1) = Cy, R(2) = CF(3); 2b, R(1) = (t)Bu, R(2) = CF(3); 2c, R(1) = Ph, R(2) = CF(3); 2d, R(1) = Ph, R(2) = CH(3)) have been synthesized by treating CpTiCl(3) with the corresponding bidentate beta-enaminoketonato ligands PhN=C(R(2))CHC(R(1))OH in the presence of triethylamine. Single crystal X-ray diffraction revealed that complex 2b adopts distorted square-pyramid geometry around the titanium center. The complexes 2a-d were investigated as the catalysts for ethylene polymerization and the copolymerization of ethylene with norbornene. All the complexes were active towards ethylene (co)polymerization in the presence of modified methyl-aluminoxane, and produced high molecular weight (co)polymers. The catalytic activity and the norbornene incorporation were highly dependent upon catalyst and reaction conditions employed. Among four complexes, 2c exhibited both high catalytic activity and efficient norbornene incorporation under the same conditions, affording high molecular weight copolymers with unimodal molecular weight distributions. (C) 2010 Elsevier Ltd. All rights reserved.
KeywordCatalysis Ziegler-natta Polymerization Polyolefins
DOI10.1016/j.polymer.2010.03.012
Indexed BySCI
Language英语
WOS IDWOS:000277054700007
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/70876
Collection中国科学院化学研究所
Corresponding AuthorLiu, Jing-Yu
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
Liu, San-Rong,Li, Bai-Xiang,Liu, Jing-Yu,et al. Synthesis, structure and ethylene (co)polymerization behavior of new nonbridged half-metallocene-type titanium complexes based on bidentate beta-enaminoketonato ligands[J]. POLYMER,2010,51(9):1921-1925.
APA Liu, San-Rong,Li, Bai-Xiang,Liu, Jing-Yu,&Li, Yue-Sheng.(2010).Synthesis, structure and ethylene (co)polymerization behavior of new nonbridged half-metallocene-type titanium complexes based on bidentate beta-enaminoketonato ligands.POLYMER,51(9),1921-1925.
MLA Liu, San-Rong,et al."Synthesis, structure and ethylene (co)polymerization behavior of new nonbridged half-metallocene-type titanium complexes based on bidentate beta-enaminoketonato ligands".POLYMER 51.9(2010):1921-1925.
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