Jump to main content
Jump to site search

Issue 6, 2013
Previous Article Next Article

Ring-opening polymerization of L-lactide catalyzed by calcium complexes

Author affiliations


A series of calcium complexes supported by NNO-tridentate ketiminate ligands have been synthesized and characterized. X-ray structural studies indicate that these complexes bear a mononuclear feature with hexa-coordinated calcium centers bonding to two ketiminate ligands. Polymerization of L-lactide catalyzed by these complexes proceeds rapidly and well controlled in the presence of a variety of alcohols. In addition, these complexes reveal good catalytic activity even with the addition of up to 80 equiv. of benzyl alcohol as a transfer agent. Furthermore, kinetic studies show ROP of L-lactide is a first-order dependency on [LA] and a second-order dependency on [BnOH].

Graphical abstract: Ring-opening polymerization of l-lactide catalyzed by calcium complexes

Back to tab navigation

Supplementary files

Publication details

The article was received on 18 Oct 2012, accepted on 01 Nov 2012 and first published on 05 Nov 2012

Article type: Paper
DOI: 10.1039/C2DT32487C
Citation: Dalton Trans., 2013,42, 2041-2051
  •   Request permissions

    Ring-opening polymerization of L-lactide catalyzed by calcium complexes

    M. Hsiao and C. Lin, Dalton Trans., 2013, 42, 2041
    DOI: 10.1039/C2DT32487C

Search articles by author