polyesters (without strong entanglement, branching between the chains). It is commonly derived from a-hydroxy acids, which are produced using monomer feedstock. Since PLA is compostable and derived from sustainable sources. it is viewed as a promising ma terial to alleviate societal solid waste disposal problems 15-7 l. PLA is yielded by direct condensation polymerization of a basic build block acid, which is nowadays generallyt produced by bacterial fermentation of carbohydrates (mainly hexose) (glucose), sugar cane (sucrose) or cheese whey (lactose) However, industries normally utilize the more efficient conversion of actide to PLA catalysed by a Sn (II)-based catalyst through 18-111. The polymerization (ROP) rather than poly-condensation and preparation method of the PLA influences its mechanical C thermal properties i e. PLA 3051D: Tg -55-65 C, Tc -150-165 and tensile strength -48 MPa [1]), which are quite similar to other polyesters (such as PET). The thermal properties are however a bit lower, due to the absence of the benzoic cycle (chain more free to move). Its chemical properties and water resistance are weakened by the presence of the carbonyl group (C O), which allows for