Anionic polymerization of ethylene oxide by organolithium·TMEDA reagents
Anionic polymerization of ethylene oxide by organolithium·TMEDA reagents
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有机锂·TMEDA试剂阴离子聚合环氧乙烷
DOI：
10.1002/pola.1986.080240623
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
M. Rausch
中科院分区：
文献类型：
--
作者：
K. Gonsalves;M. Rausch
本文报道了新型金属有机单体1,1′-双（p -羟乙基1）二茂铁(I)的合成和缩聚反应。为了开发(I)的替代合成方法，我们研究了在N， N， N， N‘-四亚甲基乙二胺（TMEDA）存在下，1,1 ’二硫代乙二烯与环氧乙烷的反应。然而，反应的主要产物是聚环氧乙烷。这一结果的根本意义在于，中间体烷氧锂- tmeda配合物促进了环氧乙烷的开环阴离子聚合。
We have recently reported the synthesis and condensation polymerization of the new organometallic monomer 1, l'-bis (P-hydroxyethy1) ferrocene (I).'In an attempt to develop an alternative synthesis for (I), we have studied the reaction of 1, l'dilithiofermcene in the presence of N, N, N, N'-tetramethylethylenediamine(TMEDA) with ethylene oxide. The major product from the reaction, however, was poly (ethy1ene oxide). The fundamental importance of this result is that the intermediate lithium alkoxide-TMEDA complex promoted the ring-opening anionic polymerization of ethylene oxide.