ABSTRACT
Polyesters are a very important group of biodegradable polymers that are characterized by the existence of esters bonds in their main chain. They are extensively investigated given their great diversity and versatility of synthesis, and due to the fact that the ester groups are hydrolytically degradable. Polycondensation of difunctional monomers primarily leads to the formation of polymers with low molecular weight (MW). On the other hand, ring-opening polymerization results in polymers with high MW. In this line, biodegradable polyesters are synthesized via ring-opening
polymerization of medium-size lactones (six-and seven-membered) [1, 2].
