| Autor: |
Park, Ki, Park, Hyung, Lee, Hee, Kim, Yong, Ooya, Tooru, Yui, Nobuhiko |
| Zdroj: |
Macromolecular Research; Jul2004, Vol. 12 Issue 4, p342-351, 10p |
| Abstrakt: |
Poly(ethylene glycol) (PEG1K) and sulfonated PEG (PEG1K-SO) methacrylate (MA) copolymers have been prepared and characterized. The structures of the synthesized copolymers were confirmed byH andC NMR spectroscopy and elemental analysis. The bulk characteristics of the copolymers were evaluated by viscosity and thermal analysis. The surface properties of the copolymers were investigated using dynamic contact angle measurements and electron spectroscopy for chemical analysis. The hydrophilicity of the surfaces modified with PEG1KMA or PEG1K-SOMA increased, possibly as a result of the orientation of the hydrophilic PEG1KMA/ PEG1K-SOMA chains into the water phase. Platelets adhered less to the surfaces of the copolymers than they did to a polyurethane control. In addition, adhesion of platelets to the copolymer surfaces decreased upon increasing the chain density of PEG1KMA and sulfonated PEG1KMA in the copolymers. Both bacterial adhesion and protein adsorption were significantly reduced on the copolymer surfaces and their levels differ depending on the kind of surface or media. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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