化工进展Issue(11)：4001-4005,4013,6.DOI:10.16085/j.issn.1000-6613.2015.11.028
香豆素衍生物基荧光型水性聚氨酯的制备及性能
Synthesis and properties of AFC-based waterborne polyurethane
摘要
Abstract
The one-pot synthesis of the WPU-AFC fluorescent emulsion,very stable for long-term storage, was realized,based on IPDI,PNGA and DMPA,with blocking by fluorescent agent 7-amino-4-(trifluoromethyl)coumarin (AFC). The mole ratio of IPDI∶PNGA∶DMPA∶AFC is 1∶0.45∶ 0.30∶0.15. Thestructure of WPU-AFC was confirmed by Fourier transform infrared spectroscopy (FTIR) and UV-visible absorption spectroscopy. The influence of stereohindrance,temperature and AFC content was thoroughly investigated. It was found that the fluorescence intensity of AFC was not originated from the so-called “concentrational self-quenching effect”,which could result from the “structural self-quenching effect”. The fluorescence intensity of WPU-AFC decreased with the increasing temperature,and was enhanced compared with that of AFC.In addition,the improved thermal stability of WPU-AFC was attributed to the incorporation of benzopyrone units in the preformed urethane groups.关键词
水性聚氨酯/7-氨基-4三氟甲基香豆素/荧光强度Key words
waterborne polyurethane/7-amino-4-(trifluoromethyl)coumarin/fluorescence intensity分类
化学化工引用本文复制引用
李朦,强西怀,薛强..香豆素衍生物基荧光型水性聚氨酯的制备及性能[J].化工进展,2015,(11):4001-4005,4013,6.基金项目
陕西科技大学创新科研团队（TD12-04）及陕西科技大学研究生创新基金项目。 （）
