Table 3.
Summary of some cellulose derivatives and its corresponding hydrogel processing methods
| Cellulose/cellulose derivatives | Nature of solvents | Solvent systems | Corresponding hydrogels preparation methods | References |
|---|---|---|---|---|
| Cellulose form wood | Polar solvents | NMMO | Solution polymerization at 85 °C | [97] |
| Cellulose from cotton pulp | Polar solvents | LiCl/DMAc | Solution polymerization at 75–90 °C | [98]; [99]; [100] |
| Filter paper | Ionic solvents | [Amim]Cl | Solution polymerization at 70 °C, 2 h | ([101]; [102]) |
| Tunicate cellulose | Alkali aqueous systems | Alkali/urea | Polymerization at −12 to −10 °C, 5–10 min | [103] |
| Cotton linter | Alkali aqueous systems | Alkali/thiourea | Polymerization at −5 °C, 2–10 min | [104] |
|
Carboxymethylcellulose (CMC) |
Polar solvents | H2O | Solution polymerization, In situ polymerization | [105]; [106]; [107] |
| Methyl cellulose (MC) | Polar solvents | DCM/DMSO | Solution polymerization, In situ polymerization | [106]; [108]; [109] |
| Hydroxyethyl cellulose (HEC) | Polar solvents | H2O | Solution polymerization, cryogenic treatment | [106]; [110] |
| Hydroxypropyl methyl cellulose (HEMP) | Polar solvents | H2O/ethanol | Solution polymerization, inverse-phase suspension polymerization | [106]; [111] |
| Cellulose acetate (CA) | Polar solvents | Acetone/H2O | Chemical cross-linking | [112] |
NMMO N-methylmorpholine-N-oxide, LiCl/DMAc Lithium chloride/dimethylacetamide, [Amim] Cl 1-allyl-3-methylimidazolium chloride, H2O water, DCM/DMSO Dichloromethane/dimethyl sulfoxide