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Citation: Yan Wei, Wei Zhi-Xiang, Wang Li-Li, Dai Li-Zong, Tian Zhong-Qun. Electrochemical and insitu Raman Spectroscopic Studies of Poly{(pyrrole-2,5-diyl)[(p-N,N-dimethylamino)benzylidene]}[J]. Acta Physico-Chimica Sinica, ;2001, 17(10): 908-912. doi: 10.3866/PKU.WHXB20011009 shu

Electrochemical and insitu Raman Spectroscopic Studies of Poly{(pyrrole-2,5-diyl)[(p-N,N-dimethylamino)benzylidene]}

1.
College of Environment and Chemical Engineering,Xi′an Jiaotong University,Xi′an　710049;College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 　361005

Received Date: 23 March 2001
Available Online: 15 October 2001

Cyclic voltammetry (CV) and insitu Raman spectroscopy were used to study the electrochemical properties of the narrow bandgap conjugated polymer poly {(pyrrole2,5diyl)[(pN,Ndimethylamino) benzylidene]}(PPDMABE).The results reveal that the pyrrole rings in oxidized state of PPDMABE exist in oxidized state,while in reduced state aromatic and quinonoid structure pyrrole rings coexist.The electrochemical reduction of PPDMABE is easier in acid solutions than in base solutions.In acidic and neutral media,the oxidized pyrrole rings exit in the form of protonized state,while in basic media they exit both in the form of protonized and deprotonized states.
- Conjugated polymer;Poly (pyrrolyl methine);Redox;in situ Raman spectroscopy;Cyclic voltammetry
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