SYNTHESIS OF CHIRAL BINAPHTHYL CROWN ETHERS AND THEIR USE IN ANIONIC POLYMERIZATION OF METHYL METHACRYLATE AS INITIATOR LIGANDS

被引:0
|
作者
习复
机构
[1] Beijing 100080
[2] Centre for Molecular Science
[3] China
[4] Chinese Academy of Sciences
[5] Institute of Chemistry
基金
中国国家自然科学基金;
关键词
Chiral binaphthyl crown ether; MMA; Anionic polymerization;
D O I
暂无
中图分类号
O631.5 [聚合反应、缩聚反应];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Some chiral binaphthyl crown ethers were synthesized. The anionic polymerization of methyl methacrylate (MMA) was carried out in the presence of t-BuOK, Ph2CHK or Ph2CHNa (RM), and RM coordination initiator by using chiral binaphthyl crown ethers as ligands, respectively. The results showed that in the former case the PMMA obtained has mainly isotactic structure but without optical activity, while in the later case the PMMA produced predominately has syndiotactic structure also without optical activity.
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页码:63 / 68
页数:6
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