Synthesis and fluorescence enhancement behavior of a novel fluorescent aqueous polyurethane emulsion DDAQ-TDI-PU  

作　　者：Xian Hai Hu Xing Yuan Zhang Jia Bing Dai 

机构地区：[1]CAS Key Laboratory of Soft Matter Chemistry,Department of Polymer Science and Engineering,University of Science and Technology of China,Hefei 230026,China [2]School of Materials and Chemical Engineering,Anhui Institute of Architecture and Industry,Hefei 230022,China

出　　处：《Chinese Chemical Letters》2012年第7期855-858,共4页中国化学快报（英文版）

基　　金：Financial supports from the National Natural Science Foundation of China(No.51073144);Natural Science Foundation of Anhui Education Department(No.KJ2011B051)

摘　　要：A novel fluorescent aqueous polyurethane emulsion DDAQ-TDI-PU was synthesized by blocking the anthraquinone moiety of 1,4-diamino-2,3-diphenoxyanthraquinone（DDAQ） into polyurethane chain using 2,4-tolylene diisocyanate（TDI）,poly（propylene glycol） and 2,2-dimethylol propionic acid.The chain structure of DDAQ-TDI-PU was confirmed by means of Fourier transform infrared spectroscopy and UV-vis analysis.Comparing to the UV-vis spectrum of DDAQ,DDAQ-TDI-PU showed a hypsochromic shift from the absorption maxima of 518,558,609 nm to 510,548,586 nm,respectively.It was found that the fluorescence intensity of DDAQ-TDI-PU emulsion was enhanced greatly comparing with that of DDAQ.The fluorescence of DDAQ-TDI-PU was very stable not only for the long term storage but also for the fluorescence quencher.A novel fluorescent aqueous polyurethane emulsion DDAQ-TDI-PU was synthesized by blocking the anthraquinone moiety of 1,4-diamino-2,3-diphenoxyanthraquinone（DDAQ） into polyurethane chain using 2,4-tolylene diisocyanate（TDI）,poly（propylene glycol） and 2,2-dimethylol propionic acid.The chain structure of DDAQ-TDI-PU was confirmed by means of Fourier transform infrared spectroscopy and UV-vis analysis.Comparing to the UV-vis spectrum of DDAQ,DDAQ-TDI-PU showed a hypsochromic shift from the absorption maxima of 518,558,609 nm to 510,548,586 nm,respectively.It was found that the fluorescence intensity of DDAQ-TDI-PU emulsion was enhanced greatly comparing with that of DDAQ.The fluorescence of DDAQ-TDI-PU was very stable not only for the long term storage but also for the fluorescence quencher.

关 键 词：Polyurethane Aqueous emulsion 1 4-Diamino-2 3-diphenoxyanthraquinone Fluorescence enhancement 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业] O614.33[理学—无机化学]