Microstructural and Mechanical Studies of PVA Doped with ZnO and WO₃ Composites Films

Table 1

Irregular shifts in FTIR spectra of pure and doped PVA composites.

Sl. no.	Sample	C–H asymmetric  stretching vibration cm^−1	C–H symmetric  stretching vibration cm^−1	C–O stretching of  acetyl group cm^−1	CH2 vibrations cm^−1
1	Pure PVA	2996.84	2878.24	1151.29	1479.13
2	PVA/15% WO3	2992.02	2878.24	1150.33	1476.24
3	PVA/1% ZnO 14% WO3	2950.55	2907.16	1148.4	1451.17
4	PVA/5% ZnO 10% WO3	2956.34	2868.59	1150.33	1475.28
5	PVA/7.5% ZnO 7.5% WO3	2953.45	2877.27	1151.29	1482.99
6	PVA/10% ZnO 5% WO3	2955.38	2872.45	1149.37	1480.1
7	PVA/14% ZnO 1% WO3	2955.38	2877.27	1151.29	1479.13
8	PVA/15% ZnO	2992.98	2880.17	1149.37	1475.28