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。
A novel water-soluble, π-conjugate poly mer-poly(pyrrole-2,5-diyl)(p-N,N-dimethylamino)benzylidene (PPDMAB) was syn thesized. The chemical structure and optical properties of the polymer were char acterized 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.
参考文献
| [1] | Samson A Jenekhe .[J].NATURE,1986,322:345-347. |
| [2] | Chen Wenchang;Samson A Jenekhe .[J].Macromolecules,1995,28:465-480. |
| [3] | Chen Wenchang;Samson A Jenekhe .[J].Macromolecules,1995,28:454-464. |
| [4] | Samson A Jenekhe .[J].MACROMOLECULES,1990,23:2848-2854. |
| [5] | 王丽莉;田昭武.[A].,1996:336-341. |
| [6] | 易文辉,王丽莉,延卫,万梅香.新型水溶性大π共轭高分子 --聚吡咯-{2,5-[双（对二甲氨基苯甲烯）]}的合成[J].高分子学报,2000(01):36-40. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%