以β-二酮连接的含生色团丙烯酰类单体及其饱和模型化合物的荧光行为  

Fluorescence Behavior of a β-Diketone-bridged Chromophore-containing Acrylic Monomer and Its Model Compound

作　　者：杜福胜[1] 张昕[1] 陈广强[1] 李子臣[1] 李福绵[1] 潘卉[2] 高青雨[2] 

机构地区：[1]北京大学化学与分子工程学院高分子科学与工程系,北京100871 [2]河南大学化学化工学院,开封475001

出　　处：《高等学校化学学报》2003年第2期374-376,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :5 0 0 0 30 0 1);教育部博士学科点基金 (批准号 :990 0 0 131)资助

摘　　要：A β-diketone-bridged chromophore-containing acrylic monomer, 1-(4-dimethylaminophenyl)-4-methyl-4-pentene-1,3-diketone(DMPDK) and its saturated model compound, 1-(4-dimethyl aminophenyl)-1,3-butanedione(DMBDK) were synthesized and investigated by spectroscopy. It was found that the fluorescence intensity of DMPDK was much lower than that of DMBDK at the same concentration, which indicates that DMPDK, a β-diketone-bridged acrylic monomer having chromophore moiety, also showed fluorescence structural self-quenching effect(SSQE). Photo-induced tautomerization of DMBDK in acetonitrile was studied by means of UV and fluorescence spectroscopy. The results imply that the fluorescence method is capable of monitoring tautomerization of some fluorescent β-diketones.A β-diketone-bridged chromophore-containing acrylic monomer, 1-(4-dimethylaminophenyl)-4-methyl-4-pentene-1,3-diketone(DMPDK) and its saturated model compound, 1-(4-dimethyl aminophenyl)-1,3-butanedione(DMBDK) were synthesized and investigated by spectroscopy. It was found that the fluorescence intensity of DMPDK was much lower than that of DMBDK at the same concentration, which indicates that DMPDK, a β-diketone-bridged acrylic monomer having chromophore moiety, also showed fluorescence structural self-quenching effect(SSQE). Photo-induced tautomerization of DMBDK in acetonitrile was studied by means of UV and fluorescence spectroscopy. The results imply that the fluorescence method is capable of monitoring tautomerization of some fluorescent β-diketones.

关 键 词：生色团 丙烯酰类单体 饱和模型化合物 Β-二酮 互变异构 荧光 紫外吸收 荧光结构自猝灭效应 

分 类 号：O631.24[理学—高分子化学]