Salicylaldimine-aluminum complexes for the facile and efficient ring-opening polymerization of ε-caprolactone

被引：135
|
作者：
Nomura, N [1 ]
Aoyama, T [1 ]
Ishii, R [1 ]
Kondo, T [1 ]
机构：
[1] Nagoya Univ, Polymer Chem Lab, Grad Sch Bioagr Sci, Nagoya, Aichi 4648601, Japan
来源：
MACROMOLECULES | 2005年 / 38卷 / 13期
关键词：
D O I：
10.1021/ma050606d
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A facile and efficient catalytic system of salicylaldimine-aluminum complexes for the ring-opening polymerization (ROP) of ε-caprolactone (CL) was investigated. The polymerization of Cl was examined at 25 °C in the presence of 1 mol % of benzyl alcohol (BnOH) using the complex prepared from 1 mol % of AlEt3 and 2 mol % of the ligand in situ. The ligands with a sterically demanding imine moiety enhances the polymerization. The results suggested that one ligand chelated the Al center but the other was monodentate, and the conformation is highly restricted.
引用
收藏
页码：5363 / 5366
页数：4
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