The isothermal crystallization kinetics of poly(ethylene glycol)-block-poly(l-lactide) block copolymers (PEG–PLLA): effects of the block lengths of PEG and PLLA

The crystallization rate of PLLA exhibited a bell shape with the crystallization temperature. In the copolymers, the bell shape tended to migrate to a lower temperature, and the peak of the bell increased with the molecular weight of PEG segments.