手性水杨醛亚胺配体铝配合物的梯度立构多嵌段聚乳酸
Gradient isotactic multiblock polylactides from aluminum complexes of chiral salalen ligands.
机构信息
Dipartimento di Chimica e Biologia, Università di Salerno , via Giovanni Paolo II, 132, 84084 Fisciano, Italy.
出版信息
J Am Chem Soc. 2014 Feb 26;136(8):2940-3. doi: 10.1021/ja412798x. Epub 2014 Feb 14.
PMID:24521164
Abstract
Aluminum complexes of enantiomerically pure aminomethylpyrrolidine-based salalen ligands and their application in the stereoselective polymerization of lactide are described. Poly(lactic acid) featuring the new gradient isotactic multiblock microstructure was synthesized by isoselective catalysts, which operate by a combination of enantiomorphic-site and chain-end control mechanisms.
摘要
本文描述了对映体纯氨甲基吡咯烷基席夫碱配体的铝配合物及其在丙交酯的立体选择性聚合中的应用。通过等规选择性催化剂合成了具有新型梯度等规多嵌段微观结构的聚乳酸，该催化剂通过手性位和链端控制机制的组合进行作用。
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