Poly(vinyl alcohol) Hydrogels: The Old and New Functional Materials

Figure 3

Modification of PVA by: (a) CBA-PVA (chemically) [38], (b) CS/PVA (physically) [42], (c) GO/PVA (filler) [57], and (d) CS/PVA/CeO₂ (polymer and filler) [58].

(a)

(b)

(c)

(d)