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聚酰胺1010的60Coγ-射线辐照后效应

POST-EFFECT OF POLYAMIDE 1010 IRRADIATED BY 60Co γ-RAYS

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【作者】 李淑华张利华张自成宋瑞方刘军

【Author】 Li Shuhua;Zhang Lihua;Zicheng;Song Ruifang;Liu Jun Changchun Institute of Applied Chemistry, Academia Sinica Institute of Theoretical Chemistry, Jilin University

【机构】 中国科学院长春应用化学研究所吉林大学理论化学研究所吉林大学理论化学研究所

【摘要】 用ESR测定了在室温下60COγ-射线辐照的聚酰胺1010和添加N,N9-双马来酰亚胺-4,4’-二苯基甲烷的聚酰胺1010的自由基,以及在升温和高温恒温过程中自由基的衰减。热处理引起俘陷自由基消亡,导致聚酰胺1010凝胶含量增加,起补充交联作用。

【Abstract】 The free radicals trapped in both polyamide (PA 1010(Ⅰ)) and polya-mide 1010 in presence of maleimides (PA 1010(Ⅱ)) under irradiation with60Co γ-rays in vacuum and at room temperature were studied by ESR spe-ctroscopy.The decay of the ESR spectrum of the trapped radicals in PA1010(Ⅰ) and PA1010(Ⅱ) has been measured in the course of heat-treatment.Ithas been observed that the decay follows a second-order rate law and isclosely related to the postcrosslinking of irradiated PA 1010(Ⅰ)and PA1010(Ⅱ)under heat-treatment.

【基金】 科研基金
  • 【文献出处】 应用化学 ,Chinese Journal of Applied Chemistry , 编辑部邮箱 ,1984年01期
  • 【被引频次】6
  • 【下载频次】42
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