本工作发现,用DSC测定从熔体等速降温时辐照样品的结晶温度T_c随辐照剂量R增加而线性变低,即辐照前后样品的△T_c=T_c_o-T_c_R=KR。依据Charlesby-Pinner方程,导出一新关系式,S+S~(1/2)=A+B/△T_c。已经证明,式中的T_c只与聚合物的交联度有关,与辐射交联方法和过程无关。因此,该方程可用于结晶聚合物的强化辐射交联,以获得非无规交联的瞬时G(c,1)值。本文为定量研究结晶聚合物的无规交联与非无规交联提供了一个简便的方法。 In this work, it was found that the crystallization temperature T_c of irradiated samples decreased linearly with the increase of irradiation dose R, which was △ T_c = T_c_o-T_c_R = KR before and after irradiation. According to the Charlesby-Pinner equation, a new relationship is derived, S + S ~ (1/2) = A + B / △ T_c. It has been proved that T_c in the formula is only related to the degree of crosslinking of the polymer and is not related to the radiation crosslinking method and process. Therefore, this equation can be used for enhanced radiation crosslinking of crystalline polymers to obtain instantaneous G (c, 1) values ​​for non-random cross-links. This article provides a convenient method for quantitatively studying the random and non-random crosslinking of crystalline polymers.