Table 1.
TGA fragment and assignments of Alg, Alg-4-AP1, Alg-4-AP2, and Alg-4-AP3.
| Temperature range (°C) | Polymeric sample weight loss % |
Assignment | Reference(s) | |||
|---|---|---|---|---|---|---|
| Alg | Alg-4-AP1 | Alg-4-AP2 | Alg-4-AP3 | |||
| 25–100 | 93 | 90 | 92 | 98 | Loss of moisture | [53,65] |
| 100–190 | 85 | – | – | – | Decarboxylation of bonded water | [53] |
| 100–200 | – | – | 87 | – | Decarboxylation of bonded water | – |
| 150–250 | – | 45 | – | – | Decarboxylation of bonded water | – |
| 190–270 | 48 | – | – | – | fragmentation of biopolymer backbone | [53] |
| 250–600 | – | 26 | – | – | Complete disintegration | – |
| 200–600 | – | – | 44 | – | Complete disintegration | – |
| 300–600 | 20 | – | – | 73 | Complete disintegration | [53,65] |
| Residual weight at 600 °C | 20 | 26 | 44 | 73 | – | – |