Aliphatic polyesters is a kind of biodegradable polymer. Enzyme catalyzed synthesis of polyesters is a new technique of polymer synthesis and is an eco-friendly process having several benefits over conventional chemical polymerization. Specific enzyme catalysis provides a novel synthetic route for useful polyesters

many of which are difficult to be synthesized by conventional methodologies. In this article

lipase-catalyzed ring-opening polymerization of lactones

step-growth polycondensation of diacids and diols

hydroxy acids and transesterification of diesters with diols has been reviewed in detail. The effect of reaction parameters

i. e. solvent

temperature

enzyme and monomer concentration

on the rate and molecular weight of the polymers is also discussed.