“…28 It is usually analyzed by differential scanning calorimetry (DSC) to determine the TP, namely, Tg, Tm, and ΔHm. 28–31 However, in some previous reports, PAA-based hydrogels with various copolymers also changed their TP. Consequently, we have to conduct a specific review to identify the TP of PAA-based hydrogels and realize their transformation.…”