Ratner B D, Leach-Scampavia D, Castner D G
Department of Chemical Engineering, University of Washington, Seattle 98195.
Biomaterials. 1993;14(2):148-52. doi: 10.1016/0142-9612(93)90229-u.
Four reference polymers studied by the International Union of Pure and Applied Chemistry working party on interactions of polymers with living systems were characterized by electron spectroscopy for chemical analysis. The surface of a polyethylene specimen was found to consist of only hydrocarbon (-CH2-) groups, as expected. Similarly, the surface of a poly(dimethyl siloxane) was found to be in close agreement with the expected stoichiometry of this polymer. The surface of the PVC sample showed a high surface concentration of hydrocarbon-rich plasticizer. Also, Si, O and Zn were detected. Cellulose coil specimens were heavily silicone contaminated. A 24 h rinse of this material in water reduced the Si level to 5%, and produced a surface spectrum closer to that expected for cellulose.
国际纯粹与应用化学联合会聚合物与生命系统相互作用工作小组研究的四种参考聚合物，通过化学分析电子能谱进行了表征。正如预期的那样，发现聚乙烯样品的表面仅由烃基（-CH2-）组成。同样，聚（二甲基硅氧烷）的表面与该聚合物预期的化学计量比非常吻合。PVC样品的表面显示出富含烃的增塑剂的高表面浓度。此外，还检测到了硅、氧和锌。纤维素线圈样品受到严重的硅污染。将该材料在水中冲洗24小时可将硅含量降低至5%，并产生更接近纤维素预期的表面光谱。
