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在NaOH/C2H5OH/DMF溶液中,实现了水溶性阴离子荧光共轭聚合物聚-[5-甲氧基-2-(3-磺酰化丙氧基)-1,4-苯撑乙烯](MPS-PPV)单体的快速聚合并提高了聚合产率.通过改变溶液中NaOH的浓度,实现了聚合物荧光发射波长的调控.对聚合物进行了元素分析、红外光谱以及分子量的表征,并探讨了不同聚合条件下得到的MPS-PPV的荧光和紫外光谱变化.研究了过氧化氢对MPS-PPV荧光发射波长及强度的影响,据此可测定过氧化氢.与单纯依赖荧光强度变化的过氧化氢检测法比,此法具有更高的选择性,为基于荧光聚合物的新型传感器研制提供了新思路.
In the NaOH / C2H5OH / DMF solution, a water-soluble anionic fluorescent conjugated polymer poly- [5-methoxy-2- (3- sulfonylated propoxy) -1,4-phenylenevinylene] MPS-PPV) monomer was synthesized and the polymerization yield was improved.The wavelength of fluorescence emission was controlled by changing the concentration of NaOH in solution.The elemental analysis, IR spectra and molecular weight characterization of the polymer were also carried out. The changes of fluorescence and UV spectra of MPS-PPV obtained under different polymerization conditions were investigated.The effects of hydrogen peroxide on the fluorescence emission wavelength and intensity of MPS-PPV were studied, and the hydrogen peroxide could be measured.With the change of fluorescence intensity Hydrogen peroxide detection method than this method has a higher selectivity for fluorescent polymer-based novel sensor provides a new way of thinking.