Table 7.

Raman frequencies in cm⁻¹ and assignments.

PLA	Assignment	IL	Assignment	GO	Assignment
711	C=O [59]	307	CH3-N-CH [53]	1350	D band [60]
760	C=O [59]	471	PF6 [53]	1585	G band [60]
1092	C-O-C [59]	743	PF6 [53]	2690	2D band [60]
1125	CH3 [59]	1462	CH3 [53]
1179	C-O [59]	2984	CH3 [53]
1386	CH3 [59]
1450	C-H [59]
1773	C=O [59]