Synthesising of chitosan–poly(m>Nm>-isopropylacrylamide) methylbisacrylamide [Cs–PNIPAM–MBA].

Investigating an influence of NIPAM composition on thermal, kinetic, solid state and life time.

Using Flynn–Wall–Ozawa, Kissinger and Coats–Redfern methods to determine activation energy.

Higher m>Em>_m>am> has been attributed to the greater cross-linking density of Cs hydrogel.

F2 type degradation mechanism proposed and lifetime decreases when service temperature increase.