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辐照后的聚氯乙烯及聚丙烯腈的电磁共振研究,发现随着温度升高(低于高分子的玻璃化温度或熔点)自旋浓度迅速下降.连同聚氯乙烯辐射交联产率小而自旋浓度大于聚乙烯的事实,提出了高分子在辐照时电子被高分子基团俘获而形成负离子的假说.应用这假说能说明一系列高分子辐射化学现象:如溶剂对高聚物的辐射效应影响;低温辐射离子聚合历程;辐照后高分子导电性增加等问题.
Electromagnetic resonance studies of irradiated PVC and polyacrylonitrile show that the spin concentration decreases rapidly with increasing temperature (below the glass transition temperature or melting point of the polymer) And the fact that the concentration of spin is larger than that of polyethylene, the hypothesis that electrons are trapped by polymer groups to form negative ions during irradiation is proposed.Using this hypothesis, a series of polymer radiation chemistries can be illustrated: Of the radiation effect; low temperature radiation polymerization process; after irradiation polymer conductivity increases and other issues.