Effect of Borate Cocatalysts toward Activity and Comonomer Incorporation in Ethylene Copolymerization by Half-Titanocene Catalysts in Methylcyclohexane

被引：3
|
作者：
Kitphaitun, Suphitchaya [1 ]
Fujimoto, Takuya [2 ]
Ochi, Yosuke [2 ]
Nomura, Kotohiro [1 ]
机构：
[1] Tokyo Metropolitan Univ, Grad Sch Sci, Dept Chem, Hachioji, Tokyo 1920376, Japan
[2] AGC Inc, Yokohama Tech Ctr, Yokohama, Kanagawa 2300045, Japan
来源：
ACS ORGANIC & INORGANIC AU | 2022年 / 2卷 / 05期
基金：
日本学术振兴会;
关键词：
polymerization; borate cocatalyst; titanium; ethylene copolymerization; cation-anion interaction; half-titanocene; SITE OLEFIN POLYMERIZATION; BINUCLEAR CATALYSTS; EFFICIENT INCORPORATION; ZIRCONIUM COMPLEXES; DONOR LIGANDS; CYCLOPENTADIENYL; METALLOCENES; 2-METHYL-1-PENTENE; COORDINATION; SUBSTITUENTS;
D O I：
10.1021/acsorginorgau.2c00020
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ethylene copolymerizations with 2-methyl-1-pentene, 1-dodecene (DD), vinylcyclohexane (VCH), [Me2Si(C5Me4)((NBu)-Bu-t)]TiCl2 (1), Cp*TiMe2(O-2,6-Pr-i(2)-4-RC6H2) [R = H (2), SiEt3 (3)]-borate, and [A(H)](+)[BAr4](-) [Ar = C6F5; A(H)(+) = N+(H)Me(n-C18H37)(2), N+(H)(CH2CF3)(n-C18H37)(2), HO+(n-C14H29)(2)center dot O(n-C14H29)(2), HO+(n-C16H33)(2)center dot O(n-C16H33)(2); Ar = C10F7, A(H)(+) = HO+(n-C14H29)(2)center dot O(n-C14H29)(2) (B5), N+(H)(CH2CF3)(n-C18H37)(2)] catalyst systems conducted in methylcyclohexane (MCH) exhibited better comonomer incorporation than those conducted in toluene (in the presence of methylaluminoxane (MAO) or borate cocatalysts). The activity was affected by the borate cocatalyst and 1,3-B5 catalyst systems in MCH and showed the highest activity in the ethylene copolymerizations with VCH and DD.
引用
收藏
页码：386 / 391
页数：6
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