Alcoholysis of methyl aluminium biphenoxides:: Excellent initiators for the ring opening polymerisation of ε-caprolactone

被引：34

作者：

Liao, TC ^{[1
]}

Huang, YL ^{[1
]}

Huang, BH ^{[1
]}

Lin, CC ^{[1
]}

机构：

[1] Natl Chung Hsing Univ, Dept Chem, Taichung 402, Taiwan

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2003年 / 204卷 / 5-6期

关键词：

initiators; NMR; ring-opening polymerization;

D O I：

10.1002/macp.200390054

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Several aluminium alkoxides are prepared, and their catalytic activities toward ring-opening polymerisation of epsilon-caprolactone have been investigated. The reaction of [(mu-EDBP)AlMe](2) (EDBP-H-2: 2,2'-ethylidenebis(4,6-di-tert-butylphenol))) with 2 molar equiv. of monomethylethylene glycol yields a five-coordinated dimeric aluminium complex, [(EDBP)Al(mu-OCH2CH2OCH2CH2OMe)](2) (1). [(mu-EDBP)AlMe](2) reacts with 2 molar equiv. of alcohol in toluene at ambient temperature to give a four-coordinated dimeric aluminium complex, [(EDBP)Al(mu-OR)](2) (2: R = Me; 3: R = Et; 4: R = 4-MeO-C6H4). However, the reaction of [(mu-EDBP)AlMe](2) with 2 molar equiv. of benzhydrol in tetrahydrofuran (THF) gives a four-coordinate monometric complex, [(EDBP)Al(OCHPh2)(THF)] (5).

引用

页码：885 / 892

页数：8

共 54 条

[1] LIVING AND IMMORTAL POLYMERIZATIONS [J].