Optically transparent, amphiphilic networks based on blends of perfluoropolyethers and poly(ethylene glycol)
Hu, Z; Chen, L; Betts, DE; Pandya, A; Hillmyer, MA; Desimone, JM
| HERO ID | 3860604 |
|---|---|
| In Press | No |
| Year | 2008 |
| Title | Optically transparent, amphiphilic networks based on blends of perfluoropolyethers and poly(ethylene glycol) |
| Authors | Hu, Z; Chen, L; Betts, DE; Pandya, A; Hillmyer, MA; Desimone, JM |
| Journal | Journal of the American Chemical Society |
| Volume | 130 |
| Issue | 43 |
| Page Numbers | 14244-14252 |
| Abstract | Amphiphilic networks of perfluoropolyethers (PFPE) and poly(ethylene glycol) (PEG) have been achieved to yield optically transparent, mechanically robust films over a wide range of compositions. Telechelic diols of these oligomers were transformed to a photocurable dimethacryloxy form (DMA) and free radically cured at various composition weight ratios to yield free-standing films. Clear and colorless amphiphilic networks could be achieved when low molar mass versions of both the PFPE-DMA (1 kg/mol) and the PEG-DMA (550 g/mol) were used. The bulk morphologies of the samples were extensively characterized by a variety of techniques including ultraviolet-visible spectroscopy, differential scanning calorimetry, dynamic mechanic thermal analysis, small-angle X-ray scattering, atomic force microscopy, X-ray photoelectron spectroscopy, and optical microscopy, which strongly suggest that nanoscopic to macroscopic phase-separated materials could be achieved. By incorporating a threshold amount of PFPEs into PEG-based hydrogel networks, water swelling could be significantly reduced, which may offer a new strategy for a number of medical device applications. Along these lines, strong inhibition of nonspecific protein adsorption could be achieved with these amphiphilic network materials compared with an oligo(ethylene glycol)-based self-assembled monolayer coated surface. |
| Doi | 10.1021/ja803991n |
| Pmid | 18834196 |
| Wosid | WOS:000260301700061 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |