The Electrochemical Polymerization of Erythrosin and the Fluorescence Spectra of Polyerythrosin

Authors

Hong-ping ZHU, Dept. of Chem., Yangzhou Univ., Jiangsu Yangzhou 225002, China;
Shao-lin MU, Dept. of Chem., Yangzhou Univ., Jiangsu Yangzhou 225002, China;

Corresponding Author

Shao-lin MU

Abstract

The solution used for the electrolysis consisted of 0.03 mol·dm^-3 erythrosin, 0.05 mol·dm^-3 sodium tetraborate and 0.5 mol·dm^-3 KCl with pH 8.50. Polyerythrosin film with red color has been electrochemically synthesized using repeated potential cycling between -0.20 and 1.10 V (vs.SCE). The film growth and the electrochemical property of polyerythrosin are affected by electrolytic conditions. Two main absorption peaks of polyerythrosin at 326 nm and 370 nm appear in the UV-visible spectrum, which are different from that of the monomer. Polyerythrosin in dimethyl sulfoxide or dimethylformamide has a strong fluorescence intensity and the fluorescence intensity of polyerythrosin in dimethylformamide is very stable. A polymerization mechanism of erythrosin is suggested based on the experimental results.

Keywords

Erythrosin, Polyerythrosin, UV visile spectra, Fluorescence spectra

DOI Link

https://doi.org/10.61558/2993-074X.1391

Publication Date

2000-08-28

Online Available Date

2000-08-28

Revised Date

2000-03-16

Received Date

1999-12-06

Recommended Citation

Hong-ping ZHU, Shao-lin MU. The Electrochemical Polymerization of Erythrosin and the Fluorescence Spectra of Polyerythrosin[J]. Journal of Electrochemistry, 2000 , 6(3): 311-316.
DOI: 10.61558/2993-074X.1391
Available at: https://jelectrochem.xmu.edu.cn/journal/vol6/iss3/6