Abstract
Expanded polytetrafluoroethylene (ePTFE) is a bioinert material. To improve the ePTFE film biocompatibility, the cold plasma technology was used with acetic acid as monomer to deposit onto ePTFE film and then (N- isopropylacrylamide) was grafted onto the surface by photo-grafting. The characteristics of the surface were evaluated with X-ray photoelectron spectroscopy (XPS), FTIR and water contact angle. It was found that the contact angle of water on the untreated ePTFE significantly decrease from 125° to 72° after ePTFE film being treated with acetic acid plasma deposition treatment. Due to the hydrophilicity of poly(N-isopropylacrylamide), the contact angle of water on the ePTFE-g-NIPAAm approached to 0°.
| Original language | English |
|---|---|
| Pages (from-to) | 187-192 |
| Number of pages | 6 |
| Journal | Advanced Materials Research |
| Volume | 15-17 |
| DOIs | |
| State | Published - 2007 |
| Externally published | Yes |
| Event | 5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC 2006 - Vancouver, BC, Canada Duration: 04 07 2006 → 08 07 2006 |
Keywords
- Epanded polytetrafluoroethylene
- Photo-grafted polymerization
- Plasma deposition
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