abstract |
The invention relates to a catalytic process for preparing polyester by ring-opening polymerization of at least one substituted glycolide of formula (I) or copolymerization of at least one substituted glycolide of formula (I) with trimethyl carbonate and/or at least one lactone of formula (II), wherein a strontium(II) alkoxide Sr(OR 3 ) 2 , is used as a catalyst. |