New (Anilidomethyl)pyridine Titanium(IV) and Zirconium(IV) Catalyst Precursors for the Highly Chemo- and Stereoselective cis-1,4-Polymerization of 1,3-Butadiene

被引：47
作者：
Annunziata, Liana [1 ]
Pragliola, Stefania [1 ]
Pappalardo, Daniela [2 ]
Tedesco, Consiglia [1 ]
Pellecchia, Claudio [1 ]
机构：
[1] Univ Salerno, Dipartimento Chim & Biol, I-84084 Fisciano, SA, Italy
[2] Univ Sannio, Dipartimento Studi Geol & Ambientali, I-82100 Benevento, Italy
来源：
MACROMOLECULES | 2011年 / 44卷 / 07期
关键词：
ALLYL-INSERTION MECHANISM; OLEFIN POLYMERIZATION CATALYSTS; BOND FORMATION REACTION; BUTADIENE POLYMERIZATION; TRANSITION-METAL; ALPHA-OLEFINS; ETHYLENE POLYMERIZATION; AMINOPYRIDINATO LIGANDS; COMPLEXES BEARING; 1,4-POLYMERIZATION;
D O I：
10.1021/ma1028455
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Group 4 metals complexes bearing anilidomethylpyridine ligands have been synthesized and characterized by nuclear magnetic resonance (NMR) spectroscopy, elemental analysis, and single-crystal X-ray diffraction analysis. All complexes, after activation by using (AlBu2H)-Bu-i and methylalumoxane (MAO) were tested in 1,3-butadiene and alpha-olefins polymerization. The zirconium complexes showed higher activity with respect to the titanium homologous. Polymerization of ethylene resulted, in all cases in the production of high molecular weight linear polyethylene. Propylene polymerization tests provided substantially atactic polypropylene. 1,3-Butadiene polymerizations produced cis-1,4 polybutadiene, and in the case of zirconium complexes polymers with a content of cis-1,4 units higher a 99.9% were provided. Activity and stereoselectivity of the catalysts were related to the steric features of the complexes.
引用
收藏
页码：1934 / 1941
页数：8
相关论文
共 49 条
  • [41] Tobisch S, 2002, CHEM-EUR J, V8, P4756, DOI 10.1002/1521-3765(20021018)8:20<4756::AID-CHEM4756>3.0.CO
  • [42] 2-W
  • [43] Mechanistic studies of the 1,4-cis polymerization of butadiene according to the pi-allyl insertion mechanism .1. Density functional study of the C-C bond formation reaction in cationic (eta(3)-allyl)(eta(2)-/eta(4)-butadiene)nickel(II) complexes [Ni(C3H5)(C4H6)](+) and [Ni(C3H5)(C4H6)(C2H4)](+)
    Tobisch, S
    Bogel, H
    Taube, R
    [J]. ORGANOMETALLICS, 1996, 15 (16) : 3563 - 3571
  • [44] Mechanistic studies of the 1,4-polymerization of butadiene according to the π-allyl-insertion mechanism.: 3.: Density functional study of the C-C bond formation reaction in cationic "ligand-free" (η3:η2-heptadienyl)(η2-/η4-butadiene)nickel(II) complexes [Ni(C7H11)(C4H6)]+
    Tobisch, S
    Taube, R
    [J]. ORGANOMETALLICS, 1999, 18 (25) : 5204 - 5218
  • [45] Pressure modulates stereoregularities in the polymerization of propylene promoted by rac-octahedral heteroallylic complexes
    Volkis, V
    Shmulinson, M
    Averbuj, C
    Lisovskii, A
    Edelmann, FT
    Eisen, MS
    [J]. ORGANOMETALLICS, 1998, 17 (15) : 3155 - 3157
  • [46] Post-metallocenes: New bis(pyrrolyl-2-aldiminato) titanium complexes for ethylene polymerization
    Yoshida, Y
    Matsui, S
    Takagi, Y
    Mitani, M
    Nitabaru, M
    Nakano, T
    Tanaka, H
    Fujita, T
    [J]. CHEMISTRY LETTERS, 2000, (11) : 1270 - 1271
  • [47] Zirconium enolatoimine complexes in olefin polymerization
    Yu, Sze-Man
    Tritschler, Ulrich
    Goettker-Schnetmann, Inigo
    Mecking, Stefan
    [J]. DALTON TRANSACTIONS, 2010, 39 (19) : 4612 - 4618
  • [48] Cationic organometallic complexes of scandium, yttrium, and the lanthanoids
    Zeimentz, Peter M.
    Arndt, Stefan
    Elvidge, Benjamin R.
    Okuda, Jun
    [J]. CHEMICAL REVIEWS, 2006, 106 (06) : 2404 - 2433
  • [49] Cationic alkyl rare-earth metal complexes bearing an ancillary bis(phosphinophenyl)amido ligand:: A catalytic system for living cis-1,4-polymerization and copolymerization of isoprene and butadiene
    Zhang, Lixin
    Suzuki, Toshiaki
    Luo, Yi
    Nishiura, Masayoshi
    Hou, Zhaomin
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (11) : 1909 - 1913
12345