Gel permeation chromatography as a combinatorial screening method: Identification of highly active hetdroligated phenoxyimine polymerization catalysts

被引：75

作者：

Mason, AF ^{[1
]}

Coates, GW ^{[1
]}

机构：

[1] Cornell Univ, Dept Chem & Biol Chem, Ithaca, NY 14853 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 35期

关键词：

D O I：

10.1021/ja047236d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A number of mixed-ligand bis(phenoxyimine) titanium catalysts were screened using a pooled combinatorial approach. Gel permeation chromatography (GPC) was used to analyze polypropylene mixtures, leading to the identification of highly active catalysts. Complexes with only one ortho-fluorinated ligand are significantly more active than homoligated complexes for the syndiospecific polymerization of propylene. Copyright © 2004 American Chemical Society.

引用

页码：10798 / 10799

页数：2

共 33 条

[21] New bis(salicylaldiminato) titanium complexes for ethylene polymerization [J].

Matsui, S ;

Tohi, Y ;

Mitani, M ;

Saito, J ;

Makio, H ;

Tanaka, H ;

Nitabaru, M ;

Nakano, T ;

Fujita, T .

CHEMISTRY LETTERS, 1999, (10) :1065-1066

[22] Combinatorial methods, automated synthesis and high-throughput screening in polymer research: The evolution continues [J].

Meier, MAR ;

Hoogenboom, R ;

Schubert, US .

MACROMOLECULAR RAPID COMMUNICATIONS, 2004, 25 (01) :21-33

[23] Site chirality as a messenger in chain-end stereocontrolled propene polymerization [J].

Milano, G ;

Cavallo, L ;

Guerra, G .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (45) :13368-13369

[24] Syndiospecific living propylene polymerization catalyzed by titanium complexes having fluorine-containing phenoxy-imine chelate ligands [J].

Mitani, M ;

Furuyama, R ;

Mohri, J ;

Saito, J ;

Ishii, S ;

Terao, H ;

Nakano, T ;

Tanaka, H ;

Fujita, T .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (14) :4293-4305

[25] Living polymerization of ethylene catalyzed by titanium complexes having fluorine-containing phenoxy-imine chelate ligands [J].

Mitani, M ;

Mohri, J ;

Yoshida, Y ;

Saito, J ;

Ishii, S ;

Tsuru, K ;

Matsui, S ;

Furuyama, R ;

Nakano, T ;

Tanaka, H ;

Kojoh, S ;

Matsugi, T ;

Kashiwa, N ;

Fujita, T .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (13) :3327-3336

[26] Synthesis, structural determination, and ethylene polymerization chemistry of mono(salicylaldiminato) complexes of titanium(IV) [J].

Owiny, D ;

Parkin, S ;

Ladipo, FT .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2003, 678 (1-2) :134-141

[27]

PENNINGTON DA, 2003, J CHEM SOC DA, P3480

[28]

Shimizu KD, 1998, CHEM-EUR J, V4, P1885

[29]

Stork M, 2000, ANGEW CHEM INT EDIT, V39, P4367, DOI 10.1002/1521-3773(20001201)39:23<4367::AID-ANIE4367>3.0.CO

[30]

2-Z

← 1 2 3 4 →