Ring opening polymerisations of cyclic esters and carbonate by rare-earth LnCp3

被引：38
作者：
Agarwal, S
Puchner, M
机构：
[1] Univ Marburg, Fachbereich Chem, Inst Phys Chem Kernchem & Makromol Chem, D-35032 Marburg, Germany
[2] Wissensch Zentrum Mat Wissensch, D-35032 Marburg, Germany
来源：
EUROPEAN POLYMER JOURNAL | 2002年 / 38卷 / 12期
关键词：
LnCp(3) catalysts; ring opening polymerisations; cyclic esters and carbonate;
D O I：
10.1016/S0014-3057(02)00141-6
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 ring opening polymerisation of cyclic esters (F-caprolactone and L-lactide) and cyclic carbonate (1,3-dioxan-2-one (TMC)) initiated with LnCp(3) complexes (Ln = Sm, Er, Pr, Gd and Ce) is reported. The size of the metal atom has an effect on the catalytic activity. The order of reactivity was found to be Er similar to Gd > Sm > Pr > Ce. The polyester chains were found to be living for successful synthesis of block copolymers. Polycarbonate (polyTMC) was obtained without CO2 elimination using LnCp(3) as an initiator. (C) 2002 Elsevier Science Ltd. All rights reserved.
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页码：2365 / 2371
页数：7
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