Synthesis and Characterization of Poly(L-lactide)-b-Poly(ε-caprolactone)Multiblock Copolymers

摘要

In attempts to modify the intrinsic properties of PLA, the PLA-PCL-PLA triblocks copolymers were synthesized by ring opening polymerization of Llactide, initiated by the hydroxyl terminal groups of the PCL chain, followed by using hexamethylene diisocyanate (HDI) in absolute chloroform solvent. Various analytical techniques such as FTIR, DSC, and 'H NMR were used to characterize the structure of the copolymer. According to that it is inferred that PLAPCL-PLA tirblocks and multiblock copolymers are synthesized.