【摘要】 通过 FT- IR、UV- Vis- NIR、in- situ UV- Vis- NIR、Raman Spectra等光谱分析手段对一种新型水溶性大 π共轭高分子——聚吡咯 - 2 ,5-二 (对二甲胺基苯甲烯 ) ( PPDMAB)的结构和光学性质进行表征。FT- IR光谱和 Raman光谱证实经过质子化处理后 ,PPDMAB分子链上芳香吡咯环明显减少 ,而氧化结构吡咯环明显增加。In- situ UV- vis- NIR光谱表明 ,PPDMAB质子化后 ,紫外区的吸收峰消失 ,在可见光区出现宽阔吸收峰更多还原

【Abstract】 A novel water soluble, π conjugate polymer poly(pyrrole 2,5 diyl)(p N,N dimethylamino)benzylidene (PPDMAB) was synthesized. The chemical structure and optical properties of the polymer were characterized by spectrograph, such as, FT IR, Raman spectra, in situ UV Vis NIR spectrum. We can draw the conclusion that the aromatic pyrrole rings turn into oxided pyrrole rings after protonated from FT IR spectra and Raman spectra. The process of protonation was also studied by in situ UV Vis NIR spectra, from which we can see that the absorption band in UV region gets weaken gradually while the absorption in visible region gets strong during protonation process. The reversible changes were observed in deprotonation process.更多还原