为了便于确定真丝绸预辐照接枝的工艺参数，采用电子自旋共振技术对这些问题进行分析。通过ESR图谱分析发现，辐照剂量率对自由基浓度影响不大，自由基含量随辐照剂量的增加而增加，在氧气中自由基在5min内是比较稳定的。%Such problem as to determine the pre－irradiation grafting process parameters is analyzed with Electron－Spin Resonancern（ESR）．From the analysis of ESR spectra，it is found that the irradiation dosage rate has not large effect on the free radicalrnconcentration，the freeradical content increases with the rise of irradiation dosage，and the free radical is very stable in oxygen rnwith in 5 minutes．
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