乙烯类单体,在氧存在下经电离辐照形成具有强引发能力的过氧化物.离开辐射场,在一定条件下,过氧化物分解为自由基立即引发聚合进行.这一过程称为预辐射聚合.前人曾研究了预辐射聚合的反应机制和动力学过程.但对于辐照产生的过氧化物的组成、结构及其行为,只有推测,而无任何研究工作.本文报道以甲基丙烯酸甲酯(MMA)为单体,研究预辐照产物的结构和引发活性的初步结果. Vinyl monomers, in the presence of oxygen by ionizing radiation to form a strong triggering ability of peroxide.Exiting the radiation field, under certain conditions, peroxide decomposition of free radicals immediately initiated polymerization.This process is called pre Radiation polymerization.Previous studies on the reaction mechanism and kinetics of pre-irradiation polymerization, but for the composition, structure and behavior of peroxide generated by irradiation, only speculation, without any research work.In this paper, methyl Methyl acrylate (MMA) was used as a monomer to investigate the structure of the pre-irradiated product and the preliminary results of the priming activity.