Fig. 6.

Synchronous hetero-spectral 2D correlation map (center) calculated using the simultaneously collected O-PTIR and Raman spectra (shown to the left and right, respectively) collected along a line across the boundary of the PHA/PLA laminate.

Synchronous hetero-spectral 2D correlation map (center) calculated using the simultaneously collected O-PTIR and Raman spectra (shown to the left and right, respectively) collected along a line across the boundary of the PHA/PLA laminate.