Table 1.
The reaction conditions and the thickness of polymer layer; diluted by DMF: monomer solution in ATRP reaction solution was diluted by DMF with some fold volume; reaction time: for example, “600 × 3” means that the polymerization thrice was performed for 600 s.
| Sample | Monomer |
ATRP reaction solution |
Reaction time (s) | Polymer thickness (nm) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Molar ratio |
Molar ratio |
Diluted by DMF | |||||||
| MES | HEMA | Monomer | TPMA | CuCl2 | Ascorbic acid | ||||
| A | 1 | 0 | 100000 | 10 | 1 | 1 | – | 600 × 3 | 11.8 |
| B | 1 | 1 | 100000 | 10 | 1 | 1 | – | 600 × 3 | 11.6 |
| C | 1 | 2 | 100000 | 10 | 1 | 1 | – | 600 × 1 | 8.6 |
| D | 1 | 5 | 100000 | 10 | 1 | 1 | – | 600 × 2 | 8.8 |
| E | 1 | 10 | 20000 | 10 | 1 | 0.5 | ×5 | 600 × 1 | 8.3 |
| F | 1 | 100 | 16667 | 10 | 1 | 2.5 | ×6 | 600 × 3 | 8.1 |
| G | 1 | 1000 | 20000 | 10 | 1 | 0.5 | ×5 | 1200 × 3 | 8.8 |
The reaction solution was newly prepared after each polymerization was completed.