摘要
本文用荧光、红外、质谱和X光衍射等技术对光敏剂二苯甲酮(BP)引发聚乙烯及其模型化合物正十二烷和异辛烷等紫外光交联过程中的先解产物进行了检测和研究.并首次确定了BP在光引发聚乙烯交联体系中光解的主要产物为苯并哪醇(1,1,2,2-四苯基—1.2—乙二醇),为BP光引发聚乙烯交联的机理提供了直接的实验证据.
Photolytic product of benzophenone (BP) during the photoinitiated crosslinking of polyethylene and its model compounds has been detected and identified for the first time by the fluorescence spec-troscopy. The results showed that main product of BP photoreduction is benzopinacol, which provides new experimental evidence for elucidating the mechanism of the photoinitiated crosslinking of polyethylene.
基金
国家自然科学基金资助项目
