| Sample | Microstructural parameters | |
| Crystallite size in Å | Lattice strain in % | |
| Pure PVA/SA | 62.8 ± 0.1 | 6.7 ± 0.7 |
| PVA/SA + 0.1% MMT | 56.4 ± 0.1 | 7.2 ± 0.1 |
| PVA/SA + 0.2% MMT | 51.7 ± 0.1 | 7.9 ± 0.2 |
| PVA/SA + 0.3% MMT | 48.8 ± 0.1 | 8.7 ± 0.3 |
| PVA/SA + 0.4% MMT | 43.6 ± 0.1 | 8.3 ± 0.1 |