Chemical Research in Chinese Universities ›› 2013, Vol. 29 ›› Issue (1): 48-50.doi: 10.1007/s40242-013-2229-1

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Anilido-imine Zinc Complexes: Efficient Catalysts for Ring-opening Polymerization of L-Lactide

YAO Wei, CUI Ning, XUE Ying-zhao, LIU Tian-tian, WANG Yan   

  1. School of Resources and Environment, University of Jinan, Jinan 250022, P. R. China
  • Received:2012-06-12 Revised:2012-06-29 Online:2013-02-01 Published:2013-01-23
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.21104026).

Abstract:

A series of anilido-imine zinc complexes ortho-C6H4(CH=NAr)(NAr)ZnEt[Ar=2,6-Me2C6H3(2a); Ar=2,6-Et2C6H3(2b)] was synthesized, characterized and used as catalysts for the ring-opening polymerization of L-lactide in the presence of benzyl alcohol. The effects of the structures of catalysts and reaction conditions on the reactivity were investigated. The polymerization of L-lactide initiated by each of these complexes was found to take place with a controlled manner.

Key words: Anilido-imine ligand, Zinc complex, Ring-opening polymerization, Lactide