Dicationic and zwitterionic catalysts for the amine-initiated, immortal ring-opening polymerisation of rac-lactide: facile synthesis of amine-terminated, highly heterotactic PLA

被引:127
|
作者
Clark, Lawrence [1 ]
Cushion, Michael G. [1 ]
Dyer, Hellen E. [1 ]
Schwarz, Andrew D. [1 ]
Duchateau, Robbert [2 ]
Mountford, Philip [1 ]
机构
[1] Univ Oxford, Chem Res Lab, Oxford OX1 3TA, England
[2] Eindhoven Univ Technol, Dept Chem Engn & Chem, Polymer Chem Lab, NL-5600 MB Eindhoven, Netherlands
基金
英国工程与自然科学研究理事会;
关键词
GROUP-3; METAL-COMPLEXES; CYCLIC ESTERS; EPSILON-CAPROLACTONE; LIGANDS; MECHANISM; LACTONES; KINETICS; YTTRIUM;
D O I
10.1039/b919162c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Dicationic, zwitterionic and "conventional'' yttrium compounds act as catalysts for the primary or secondary amine-initiated immortal ROP of rac-lactide; amine-terminated, highly heterotactic poly(rac-lactides) with narrow polydispersities and well-controlled molecular weights are prepared in this manner.
引用
收藏
页码:273 / 275
页数:3
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