S.No. Absorption bands (cm-1) and their peak assignments
PP (Polypropylene)
1. 973 -CH2 Rocking Vibration
2. 997 -CH3 Rocking Vibration
3. 1167 -CH3 symmetric deformation
4. 1454 -CH2 symmetric deformation
5. 1167 -CH3 symmetric deformation
6. 2929 -CH2 anti symmetric deformation
Table 10: Characteristic peak values in FTIR spectra for virgin PP.