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用FTIR ,UV ,TG ,DSC等方法研究了 2种阳离子引发剂CD10 12与IG2 61在电子束(EB)辐照下的变化 .实验发现 :2种阳离子引发剂在辐照后IR谱都没有明显的变化 ;在辐照前后其紫外最大吸收峰波长λmax都有一定变化 ,CD10 12在辐照后其λmax有降低的趋势 ,而IG2 61在辐照 4 8kGy后其λmax有增加的趋势 .阳离子引发剂CD10 12在辐照后其热分解温度略有降低 ,而IG2 61的在辐照后反倒有所提高 .CD10 12的熔化温度随辐照剂量的增大而降低 ,IG2 61的熔化温度在辐照前后变化不大 .这说明辐射对 2种阳离子引发剂的影响是不一样的 ,CD10 12对EB辐照比较敏感
The changes of two cationic initiators, CD10 12 and IG2 61, under electron beam (EB) irradiation were studied by means of FTIR, UV, TG and DSC.The experimental results showed that IR spectra of the two cationic initiators were not The maximum λmax of ultraviolet absorption peak before and after irradiation had a certain change, the λmax of CD1012 decreased after irradiation, while the λmax of IG2 61 had a tendency to increase after 48kGy irradiation.Cation The thermal decomposition temperature of initiator CD1012 decreased slightly after irradiation, while that of IG261 increased after irradiation, the melting temperature of CD1012 decreased with the increase of irradiation dose, and the melting temperature of IG261 was between There was no significant change before and after irradiation, indicating that the effect of radiation on the two cationic initiators was not the same, CD10 12 was more sensitive to EB irradiation