In situ generated, tetrahydrosalen stabilized yttrium borohydride complex: Efficient initiator for the ring-opening polymerization of ε-caprolactone

被引：8

作者：

Huang, Jing ^{[1
]}

Yu, Jian Fang ^{[1
]}

Wu, Guang Ming ^{[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, Zhejiang, Peoples R China

来源：

CHINESE CHEMICAL LETTERS | 2009年 / 20卷 / 11期

关键词：

Tetrahydrosalen; Yttrium complex; Ring-opening polymerization; epsilon-Caprolactone; LIGANDS; LACTIDE; TITANIUM;

D O I：

10.1016/j.cclet.2009.06.018

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, we report the preparation of a new tertrahydrosalen-stabilized yttrium complex which was employed as an initiator-precursor for the polymerization of epsilon-caprolactone (epsilon-CL) in the presence of NaBH4 to give interesting hydroxytelechelic poly(epsilon-caprolactone) (PCL). The effect of [monomer]/[initiator] ([CL]/[I]), temperature and time on the polymerization was investigated. It was found that under the condition: [CL]/[I] = 1200, 55 degrees C, toluene: 0.5 mL, epsilon-CL: 0.5 mL, PCL with M-w = 32,600 and PDI = 1.47 was obtained. (c) 2009 Wei Lin Sun. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

引用

页码：1357 / 1360

页数：4

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