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以电子自旋共振波谱仪(ESR)为主要手段,研究了聚乙烯等五种聚合物等离子体改性过程中表面自由基的生成及转化。等离子体辐照的聚合物首先在表面生成烷基自由基,当与空气接触时,烷基自由基转化成过氧化自由基,在聚合物表面引入极性基因是通过过氧化自由基的反应完成的。
Electron spin resonance spectroscopy (ESR) was used as the main method to study the formation and transformation of surface free radicals during the plasma modification of five polymers, such as polyethylene. The plasma-irradiated polymer first generates alkyl radicals on the surface. When contacted with air, the alkyl radicals are converted to peroxidic radicals. The introduction of polar genes on the polymer surface is accomplished by the reaction of peroxide radicals of.