Table 3 Temperatures of the main weight loss steps in the TGA curves of the polymers
From: Synthesis of alumina, titania, and alumina-titania hydrophobic membranes via sol?gel polymeric route
Material | Main steps | |||||||
|---|---|---|---|---|---|---|---|---|
| Â | Step I | Step II | Step III | Step IV | ||||
| Â | Temperature (?C) | Weight loss (%) | Temperature (?C) | Weight loss (%) | Temperature (?C) | Weight loss (%) | Temperature (?C) | Weight loss (%) |
Free polymer | 50 to 179 | 8 | 179 to 218 | 12 | 308 to 450 | 80 | Â | Â |
+Al3+ | 75 to 162.5 | 5.8 | 163 to 242.5 | 6.6 | 243 to 637 | 38.77 | 637 to 1,000 | 16.26 |
+Al3+ and Ti4+ | 50 to 175 | 12 | 175 to 378 | 22.3 | 378 to 550 | 20.42 | 775 to 1,000 | 1.27 |
+Ti4+ | 75 to 175 | 4.4 | 175 to 375 | 14.4 | 375 to 570 | 28.7 | 570 to 1,000 | 1.57 |