Fig. 6

Raman spectra of PLA (a, b) and PLA-WS2 0.6% (c, d) measured on UNST, ST0, ST3 and ST10 samples. The spectra have been normalized with respect to the intensity of the PLA band at 1095 cm− 1
Raman spectra of PLA (a, b) and PLA-WS2 0.6% (c, d) measured on UNST, ST0, ST3 and ST10 samples. The spectra have been normalized with respect to the intensity of the PLA band at 1095 cm− 1