文献类型：期刊文献

中文题名：新型可聚合激光染料及双发色团共聚物的合成

英文题名：SYNTHESIS OF NOVEL COPOLYMERIC LASER DYES AND DICHROMOPHORIC COPOLYMER

作者：何元君[1];田禾[1]

机构：[1]华东理工大学精细化工研究所,上海200237

年份：2000

卷号：10

期号：3

起止页码：379

中文期刊名：高分子学报

外文期刊名：Acta Polymerica Sinica

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目!(基金号 2 983 615 0 ;2 962 5 611)

语种：中文

中文关键词：1,8-萘酰亚胺;若丹明;共聚合;激光染料;激光材料

外文关键词：Laser dye, 1,8-naphthalimide, Modified rhodamine 6G, Copolymerization

摘要：Modified rhodamine 6G molecules (Rh\|Al)with polymerizable double bonds were copolymerized with methyl methacrylate(MMA) and 1,8\|naphthalimide derivative(N\|AE).The structures of the two monomers(Rh\|Al and N\|AE)were confirmed and characterized by 1H\|NMR and MS. The UV\|Vis absorption spectra of the copolymer indicate that there is little or no interaction between the two chromophores in their ground state. However, the fluorescence emission of N\|AE was partly quenched and the fluorescence emission of Rh\|Al was enhanced in the copolymer. While the fluorescence emissions of N\|AE and Rh\|Al both were partly quenched in the corresponding mixture. The results show that in the excited state there exists very effective intramolecular singlet\|singlet energy transfer(Intra\|SSET)channel from N\|AE to Rh\|Al in the copolymer. The experiments seem to indicate that the covalent binding of the chromophore to a polymer chain restricts its mobility and,therefore, hinders the internal micromotions of the excited groups, avoiding non\|fluorescent deactivation and thus increasing its emission efficiency and photostability.
Modified rhodamine 6G molecules (Rh\|Al)with polymerizable double bonds were copolymerized with methyl methacrylate(MMA) and 1,8\|naphthalimide derivative(N\|AE).The structures of the two monomers(Rh\|Al and N\|AE)were confirmed and characterized by 1H\|NMR and MS. The UV\|Vis absorption spectra of the copolymer indicate that there is little or no interaction between the two chromophores in their ground state. However, the fluorescence emission of N\|AE was partly quenched and the fluorescence emission of Rh\|Al was enhanced in the copolymer. While the fluorescence emissions of N\|AE and Rh\|Al both were partly quenched in the corresponding mixture. The results show that in the excited state there exists very effective intramolecular singlet\|singlet energy transfer(Intra\|SSET)channel from N\|AE to Rh\|Al in the copolymer. The experiments seem to indicate that the covalent binding of the chromophore to a polymer chain restricts its mobility and,therefore, hinders the internal micromotions of the excited groups, avoiding non\|fluorescent deactivation and thus increasing its emission efficiency and photostability.