【摘要】 <正> ESCA(或XPS-X光电子能谱)方法用于研究聚合物薄膜表面结构有其独到之处,因它不需破坏试样表面层而能直接提供有关的信息。如Riggs曾用ESCA研究了经钠/铵处理过的含氟聚合物表面结构,证明处理后的表面脱了氟,并存在不饱和的双键。Clark和Riggs等人研究了氟化聚乙烯薄膜的表面结构。Clark通过对能谱图形的解析及化学的定量计算,得出氟更多还原

【Abstract】 Polypropylene films were exposed to air containing 20% fluorine in nitrogen for a given length of time at 30℃. ESCA was employed to examine the changes in the surface fluorination of polypropylene. The results of analysis show that in the initial stage fluorination increased gradually and then the fluorine content became stabilized. From these experimental results, we have derived the mechanism of surface fluorination of polypropylene film.更多还原