Active species in the anionic ring-opening polymerization of cyclic carbonates
Active species in the anionic ring-opening polymerization of cyclic carbonates
复制标题
环状碳酸酯阴离子开环聚合中的活性物质
DOI：
10.1002/macp.1989.020151989102
复制
发表时间：
1989
影响因子：
2.5
通讯作者：
H. Höcker
中科院分区：
文献类型：
--
作者：
S. Kühling;H. Keul;H. Höcker
发现仲丁基锂、甲醇钠或二氢萘钾引发的5，5-二甲基-1，3-二氧六环-2-酮（2，2-二甲基三亚甲基碳酸酯）（1）的阴离子开环聚合是通过醇盐阴离子进行的。这一发现是基于聚合物端基的31P NMR光谱研究，这是由活性聚合物与氯磷酸二苯酯反应产生的。
Anionic ring opening polymerization of 5,5-dimethyl-1,3-dioxan-2-one (2,2-dimethyltrimethylene carbonate) (1) initiated by sec-butyllithium, sodium methoxide or potassium dihydronaphthylide was found to proceed via alcoholate anions. This finding is based on 31P NMR spectroscopic studies of the polymer end groups, which result from the reaction of the living polymer with diphenyl chlorophosphate.