Table 5.
Types of crosslinking mechanism.
| Type of Crosslinking | Monomers | Common Crosslinkers | Ref. |
|---|---|---|---|
| Homopolymer (single network) | Poly(2-hydroxyethyl methacrylate) (Figure 3) |
Polyethylene glycol dimethacrylate | [90,93] |
| Triethylene glycol dimethacrylate (TEGDMA) |
|||
| Co-polymer (double or more) | Polyethylene glycol (PEG)/ | ||
| methacrylic acid (MAA) (Figure 3) | Tetra(ethylene glycol) dimethacrylate | [90,92,122] | |
| Carboxymethyl acid cellulose (CMC)/ | |||
| Poly(vinyl pyrrolid) (PVP) | |||
| Semi-interpenetrating network (semi-IPN) | Acrylamide/acrylic acid copolymer/ Linear cationic polyallylammonium chloride |
N,N’-methylene bisacrylamide | [93] |
| Interpenetrating network (IPN) | Poly(N-isopropyl acrylamide)/ Chitosan |
N,N’-methylene bisacrylamide | [123] |