Controlled polymerization of DL-lactide using a Schiff's base al-alkoxide initiator derived from 2-hydroxyacetophenone

被引：80

作者：

Bhaw-Luximon, A ^{[1
]}

Jhurry, D

Spassky, N

机构：

[1] Univ Mauritius, Fac Sci, Dept Chem, Reduit, Mauritius

[2] Univ Paris 06, UMR 7610, Lab Chim Polymeres, F-75252 Paris 05, France

来源：

POLYMER BULLETIN | 2000年 / 44卷 / 01期

关键词：

D O I：

10.1007/s002890050570

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The kinetics of DL-lactide polymerization was studied in CH2Cl2 at 25 degrees C and in toluene at 70 degrees C with HAPENAlOMe, a new Schiffs base complex derived from 2-hydroxyacetophenone and ethylenediamine. A higher polymerization rate is observed with this initiator as compared to other previously reported Al-alkoxides complexes. The polymerization with HAPENAlOMe is also shown to be a living process in both solvents. Moreover, the polymerization proceeds to quite high conversion without significant occurrence of transesterification reactions as confirmed from C-13 NMR and SEC analysis.

引用

页码：31 / 38

页数：8

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