Tetrahydrosalen backboned gadolinium complex as initiator for the ring-opening polymerization of ε-caprolactone

被引：4
|
作者：
Wu, Guang Ming [1 ]
Ni, Xu Feng [1 ]
Sun, Wei Lin [1 ]
Shen, Zhi Quan [1 ]
机构：
[1] Zhejiang Univ, Key Lab Macromol Synth & Functionalizat, Minist Educ, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China
来源：
CHINESE CHEMICAL LETTERS | 2008年 / 19卷 / 06期
关键词：
Tetrahydrosalen complex; Rare earth catalyst; epsilon-Caprolactone; Ring-opening polymerization;
D O I：
10.1016/j.cclet.2008.04.021
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Tetrahydrosalen ligand was employed in the synthesis of gadolinium complex. The ligand was deprotoned by LiBu, and the afforded lithium salt was reacted with anhydrous GdCl3 to produce the gadolinium complex through salt metathesis. This complex was successfully used to initiate the ring-opening polymerization of epsilon-caprolactone. The initiation conditions in different temperature, monomer-to-initiator ratio and time were investigated. Under the condition: [epsilon-caprolactone]:[catalyst] = 600, 56 degrees C, toluene: 2 ml, poly(epsilon-caprolactone) (PCL) with Mw = 11,2782 and PDI = 1.96 was achieved. (C) 2008 Wei Lin Sun. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
引用
收藏
页码：681 / 684
页数：4
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