Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Surface composition of PSf, PSf-1BL, PSf-3BL, and PSf-5BL membranes from XPS spectra (in atomic percent).
| Samples | N1s | C1s | O1s | S2p |
|---|---|---|---|---|
| PSf | − | 79.08% | 16.24% | 4.67% |
| PSf-1BL | 3.03% | 72.85% | 20.08% | 3.65% |
| PSf-3BL | 5.33% | 68.98% | 21.63% | 3.27% |
| PSf-5BL | 6.12% | 68.67% | 22.12% | 3.09% |
