Table 1.
Water contact angles for supported and free-standing films. Supported films are made of 40 layers for PAA-ending films, or of 39 layers for PEI-ending films.
| (PEI-Ag/PAA) films on PET | (PEI-Ag/PAA)20 free-standing film | ||
|---|---|---|---|
| Thermal crosslinking | Thermal crosslinking + silane coating | Thermal crosslinking + silane coating | |
| PAA-ending | 126.2±1.3° | 169.2±3.5° | 168.2±2.5°a, 52.7±5.7°b |
| PEI-ending | 98.6±0.8° | 112.1±1.9° | |
a
measured on the top surface of (PEI-Ag/PAA)20 free-standing film
b
measured on the bottom surface of (PEI-Ag/PAA)20 free-standing film