Table 5: Weight loss and the glass transition temperature and corresponding degradation temperatures for the hydrogels.

Hydrogel sample (%)Residual value at 500°C (%)
(°C)

P(NIPA)1103153523819.1
NIPA/MMA/NTBA (80/15/5)1213263684047.4
NIPA/MMA/AA (80/15/5)1273283734058.8
NIPA/AA/NTBA (80/5/15)1293253714069.6
NIPA/AA/MMA (50/40/10)13332937440910.1
NIPA/AA/NTBA (50/40/10)14233237641210.4

: glass transition temperature; : temperature at which degradation starts; : temperature at which the degradation rate is at maximum temperature; : temperature at which degradation ends.