Polymerization of Ethylene oxide with alkyllithium compounds and the phosphazene base ''tBu-P-4''
Polymerization of Ethylene oxide with alkyllithium compounds and the phosphazene base ''tBu-P-4''
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DOI：
10.1002/anie.199606231
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发表时间：
1996-04-01
期刊：
影响因子：
--
通讯作者：
Moller, M
中科院分区：
文献类型：
--
作者：
Esswein, B;Moller, M
在烷基锂/磷腈基引发剂体系下，环氧乙烷阴离子聚合生成了结构良好、多分散性较低的聚环氧乙烷S。该碱基可以看作是Li+离子的密码处。因此，络合的醇氧离子对和反应性的自由阴离子之间的平衡发生了移动。
Well‐defined poly(ethylene oxide)s with low polydispersitiesare formed in the anionic polymerization of ethylene oxide with an alkyllithium/phosphazene base initiator system. The base can be regarded as a cryptand for Li+ions. The equilibrium between complexed alkoxide ion pairs and reactive free anions is thus shifted.