Table 5.
Average pore size (Ø) according to thermoporosimetry analysis and nitrogen sorption experiments at 77 K, pore volume, and overall porosity as obtained by helium pycnometry for aerogels derived from solutions of cotton linters in TBAF/DMSO (CL-TBAF), [EMIm][OAc]/DMSO (CL-EMIm), NMMO·H2O (CL-NMMO) and Ca(SCN)2·8H2O/LiCl (CL-CTO)
| Sample name | CL-TBAF | CL-EMIm | CL-NMMO | CL-CTO |
|---|---|---|---|---|
| CL (w%) | 3.0 | 3.0 | 3.0 | 1.5 |
| Pore size TPM (nm) | 36/101 | 62 | 96 | 84 |
| Modal pore size BJH (nm) | 34.5 | 34.4 | 32.1 | 2.7 |
| Hydraulic pore size (nm) | 72.3 | 38.4 | 36.7 | 23.6 |
| Pore volume (cm−3 g−1) | 5.9 | 2.4 | 1.4 | 0.8 |
| Porosity (%) | 95.5 ± 0.1 | 96.3 ± 0.1 | 95.9 ± 0.1 | 98.1 ± 0.1 |