Ultraproductive, Zinc-Mediated, Immortal Ring-Opening Polymerization of Trimethylene Carbonate

被引：79
作者：
Helou, Marion [1 ]
Miserque, Olivier [2 ]
Brusson, Jean-Michel [2 ]
Carpentier, Jean-Francois [1 ]
Guillaume, Sophie M. [1 ]
机构：
[1] Univ Rennes 1, CNRS, Catalysis & Organomet UMR 6226, F-35042 Rennes, France
[2] Zone Ind C, Total Petrochem Res, B-7181 Feluy, Belgium
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2008年 / 14卷 / 29期
关键词：
homogeneous catalysis; polycarbonates; ring-opening polymerization; transfer agents; zinc;
D O I：
10.1002/chem.200801416
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The 'immortal' solvent-free polymerization of TMC by using a simple binary catalyst system based on Coates' zinc complex supported by a β-diiminate ligand, and benzyl alcohol as a transfer agent was investigated. The 'immortal' approach was applied for the first time to a carbonate monomer and was shown to be extremely effective. The reaction mixtures and final polymers were analyzed by NMR spectroscopy and size exclusion chromatography (SEC) to determine the monomer conversion, the total number of chains, and the chain-end structure. The amido precursor was first evaluated without any added alcohol. It was observed that the [Zn(bdi){N-(SiMe3)2}]/BnOH system features highly efficient, catalytic activities, and productivities for controlled 'living' and 'immortal' ROP of trimethylene carbonate.
引用
收藏
页码：8772 / 8775
页数：4
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