| Water contact angle (3 µL deionized-water droplets, after 5 s equilibration) | 50.60° for the control membrane to 25.10° at 1.0 % HPE |
|---|---|
| ATR-FTIR, O-H band | 3300–3500 cm⁻¹ |
| ATR-FTIR, ester-related feature | Near 1735 cm⁻¹ |
| Calculated XPS hydroxyl fraction (membranes dried at 50 °C for 4 h before analysis) | 5.2 % to 14.2 % |
| AFM surface roughness (5 × 5 µm² image area) | 2.52 to 10.36 nm |
| SEM (after gold coating) and AFM (5 × 5 µm² image area) | Increasingly nodular and rough surfaces |
Rui Mo. “Tuning the permeability–selectivity balance of polyamide nanofiltration membranes with functionalized MoS2 nanosheets and hyperbranched polyester.” ChemRxiv (). https://doi.org/10.26434/chemrxiv.15007538/v1
No separate supporting information file was found among the files available from the ChemRxiv record
| Water contact angle (3 µL deionized-water droplets, after 5 s equilibration) | 30.90° at 0.2 % HPE to 20.10° at 1.0 % HPE |
|---|---|
| Surface SEM (after gold coating) | Revealed increasingly prominent nodular surface structures with increasing HPE content |
| Cross-sectional SEM (after gold coating; cross sections fractured in liquid nitrogen) | Suggested the presence of void-containing regions around the nanosheets |
| AFM (5 × 5 µm² image area) | Confirmed a corresponding increase in surface roughness |