Table 5.
Obtained results and calculated amounts of PEI molecules from thermogravimetric analysis for surface-modified samples in different units.
| Sample | Weight Loss a
wt.% |
Mass of Organic Part b
mg·g−1 |
Amount of Organic Part c
mmol·g−1 |
|---|---|---|---|
| SBA-15(C)-Cl | 6.01 | 58.8 | - |
| SBA-15(C)-800 | 9.80 | 92.6 | 0.116 |
| SBA-15(C)-1300 | 14.95 | 146.5 | 0.113 |
| SBA-15(C)-2000 | 24.02 | 237.5 | 0.118 |
a—mass losses in wt.% on TG curves in the temperature range of 150–800 °C; b—the mass of PEI molecules in mg on the surface of support per 1 g of material; c—the amount of PEI molecules in mmol on the surface of support per 1 g of material.