N-丁基-2-乙氧基硫代吖啶酮的光化学反应机理  

PHOTOCHEMICAL REACTIONAL MECHANISM OF N-BUTYL-2-ETHOXY THIOACRIDONE

作　　者：李晓娜[1] 张育川[1] 张默君[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029

出　　处：《感光科学与光化学》2002年第6期417-423,共7页Photographic Science and Photochemistry

基　　金：国家自然科学基金资助项目 (2 98760 0 1 )

摘　　要：采用荧光光谱研究了N 丁基 2 乙氧基硫代吖啶酮的光化学反应机理 .结果表明 :在Xe灯光照下 ,N 丁基 2 乙氧基硫代吖啶酮转变成了相应的吖啶酮 ,用紫外 可见光谱和质谱证实了吖啶酮的存在 ;生成的吖啶酮可被二苯基碘盐猝灭 ,它们之间的荧光猝灭遵循电子转移的反应机理 .实验又证明了由硫代吖啶酮、二苯基碘盐和硫代水杨酸三者组成的光聚合引发体系的引发效果最好 .The photoreactive mechanism of the N butyl 2 ethoxy thioacridone was studied by fluorescence spectrum analysis. The results showed that upon Xe lamp irradiation,N butyl 2 ethoxy thioacridone was transformed into corresponding acridone and the presence of the lattter was confirmed by UV visible absorbtion spectrum and mass spectrum.The acridone could be quenched by the diphenyl iodium salt and the electron transfer mechanism between them was verified via fluorescence quenched.The experimental results indicated that the initiative effect of the photopolymerizable initiation system comprising the N butyl 2 ethoxy thioacridone,the biphenyl iodium salt and thiosalicylic acid was the best.

关 键 词：光化学反应机理 N-丁基-2-乙氧基硫代吖啶酮 吖啶酮 电子转移 荧光光谱 可见光光敏剂 

分 类 号：O644[理学—物理化学]