A study of molybdenum catalysts in the polymerization of 2,5-didodecyl-1,4-dipropynylbenzene

被引：14

作者：

Bly, RK

Dyke, KM

Bunz, UHF

机构：

[1] Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29201 USA

[2] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2005年 / 690卷 / 03期

关键词：

Group; 6; molybdenum; alkyne metathesis; phenol co-catalyst;

D O I：

10.1016/j.jorganchem.2004.10.038

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of 2,5-didodecyl-1,4-dipropynylbenzene with different molybdenum sources (Mo(CO)(6), norbornadiene-Mo(CO)(4), cyclooctadiene-MO(CO)(4), cycloheptatriene-Mo(CO)(3), (PhCdropCPh)(3)Mo(CO), (acac)(2)MoO2/AlEt3) was investigated in the presence of 4-chlorophenol or 2-fluorophenol. Upon heating to 105-130 degreesC, the formation of didodecyl-PPE resulted. The degree of polymerization of the PPE is dependent on the used phenol and to the utilized molybdenum precursor. The most active catalyst forms from (acac)(2)MoO2, AlEt3 and 2-fluorophenol. This catalyst combination gives high molecular weight PPEs after 6 h at 105 degreesC. (C) 2004 Published by Elsevier B.V.

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收藏

页码：825 / 829

页数：5

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