Figure 3: Morphological transition and the changes to the crystallinity on mixing of two homochiral cylinders 3 and 4.

Conducted at 65 °C with the addition of fresh THF (final solvent composition THF/H₂O 20/80 v/v). (a) Cartoon illustration showing the morphological transition from homochiral cylinders 3 and 4 to stereocomplex spheres. Scale bar=500 nm (b) FT-IR spectra of dried nanoparticles, which reveal the wavenumber of carbonyl group vibration of poly(lactide) shifted from 1,758 to 1,750 cm⁻¹ over time. Scale bar=500 nm. (c–g) TEM images, which illustrate the length of the cylindrical micelles decreased while the population of spherical micelles increased over time. Scale bars=500 nm. (h) TEM expansion of 62 h time point. Scale bar=100 nm. (i) WAXD diffractograms illustrating that the intensity of stereocomplex Bragg peak at a 2θ value of 12° increased gradually, whereas the intensity of homochiral Bragg peak at a 2θ value of 16.6° decreased significantly over time. TEM samples were prepared by slow drying and negatively stained using PTA.