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Effects of time delay between oxygen plasma treatment and the fluoro-silanization reaction on the extent of fluorination of the PMMA surface measured by water and hexadecane contact angle measurements.
| Time delay between oxygen plasma treatment and fluoro-silane treatment |
Water contact angle |
Hexadecane contact angle |
|---|---|---|
| No delay | 121 ± 4° | 82 ± 2° |
| 1 h | 121 ± 1° | 81 ± 1° |
| 2 h | 120 ± 2° | 82 ± 1° |
