Author(s)

Maosheng Wan, Jinzhao Chen, Xinchun Shen, Jinglan Guo

Biology Institute of Shandong Academy of Sciences Jinan, Shandong, 250014, China.
School of Chemistry and Chemical Engineering, Shandong University Jinan, Shandong, 250100, China.

Four novel gemini quaternary ammonium surfactants containing DSD acid-triazine structure were synthesized using a facile three-step synthetic route , from 4,4'-diamino-2,2'-disulfonic-stilbene (DSD acid), cyanuric chloride and dimethyl dodecylamine. The structures and optical properties of compounds (6a-d) were characterized by Fourier-Transform infrared (FT-IR) spectroscopy, UV-visible absorption spectra and fluorescence emission spectrum. The surface tension and the Critical Micelle Concentration (CMC) were evaluated. The result shows that the four compounds at lower concentrations can greatly reduce the surface tension of aqueous solutions. The spectroscopic properties of  these quaternary ammonium salts are assessed for their effectiveness and potential as fluorescent brightening agents.

Quaternary ammonium, Surfactants, DSD acid, Critical micelle concentration

Wan, M. , Chen, J. , Shen, X. and Guo, J. (2012) Synthesis, Optical and Surface Properties of the New Gemini Quaternary Ammonium Surfactants Containing DSD Acid-triazine Structure. Open Journal of Applied Sciences, 2, 116-119. doi: 10.4236/ojapps.2012.24B028.