|
26
|
Dioxane : water (9 : 1, v/v) |
|
RT for 2 h |
Activation of lignin by oxidation, performed in dark |
16.6 wt%–83.3 wt% |
∼5–30 emu g−1
|
| Sodium periodate |
|
|
27
|
Ethanol : water (4 : 1, v/v) |
|
45 °C for 16 h; 60 °C for 6 h |
Ar atmosphere and pH = 9 for the reaction |
25.0 wt%–66.7 wt% |
∼16–23 emu g−1
|
| Tetraethyl orthosilicate |
|
| Formaldehyde |
|
| 3-Aminopropyltriethoxysilane |
|
| Aq. Ammonia |
|
|
40
|
Poly(ethylene)imine |
|
40 °C for 2 h for amino functionalization |
Amino functionalization and stabilization of Fe3O4 nanoparticles |
44.4 wt% |
— |
| Na-alginate emulsifier |
— |
| 3-Aminopropyltriethoxysilane |
|
| Oleic acid |
— |
|
41
|
2-(N-Morpholino) ethanesulfonic acid |
— |
RT for 2 h |
Preparation of PSA/SiO2/Fe3O4/AuNP microspheres (magnetic microspheres; MMS) and amination of lignin |
— |
— |
|
N-Hydroxysuccinimide |
|
| Triethylamine |
|
| NaCl buffer |
— |
| Methanol |
|
|
N-(3-Dimethylaminopropyl)-N′-ethyl carbodiimide |
|
| This work |
— |
— |
85 °C for 15–30 min |
Melting of esterified lignin |
1.0 wt%–16.6 wt% |
∼0.5–7.1 emu g−1
|
