Table 2 FT-IR band assignments of the synthesized PM (0, 1, 5, 10, & 15 wt %) composites.

S. no	Wavenumbers (cm^-1)					FTIR band assignments	References
S. no	PM0	PM1	PM5	PM10	PM15	FTIR band assignments	References
1	752	752	752	752	752	=C–H bending mode of vibrations	³⁷
2	840	804	806	840	804	C–H vibration	⁴⁹
3	983	–	985	981	–	=C–H bending mode of vibrations, C–O–C group	^37,49
4	–	1022	–	–	1024	C–O stretching or O–H deformation	⁵⁰
5	1070	1095	1066	1064	1097	C–O stretching vibrations	^37,49
6	1147	–	1147	1149	–	C–O stretching vibrations	^37,49
7	–	–	1193	1193	1195	C–O stretching vibrations	⁴⁹
8	1249	1261	1261	1246	1261	C–O stretching vibrations	⁴⁹
9	1384	1388	1388	1388	1388	–CH₂ bending mode, C = O bending vibrations, CH₃ symmetric bending	^37,51
10	1448	1450	1450	1450	1452	CH₃ anti-symmetric bending	⁵¹
11	1631	1637	1637	1637	1645	Stretching vibration of O–H bonds, C = C	^37,52
12	1730	1730	1730	1730	1730	C–O vibration	⁵²
13	2846	2852	2852	2854	2854	–O–CH₃ group, Hydrogen bonding	^53,55
14	2951	2962	2954	2953	2962	Stretching & asymmetric –C–H bond of CH₃ group, Hydrogen bonding	^55,56
15	2997	–	2997	2997	–	Asymmetric C–H stretching vibration, Hydrogen bonding	^37,55
16	–	3437	3447	3444	3441	O–H vibration, Molecular water	^54,55
17	–	3741	–	3695	3695	OH group	⁵⁵

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