Synthesis and Properties of Gluconamide-Based Trisiloxane Surfactant |
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| Authors: | Dian Long Zhang Guiyun Zhong Guojin Li |
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| Institution: | 1. Department of Chemistry , Shanxi Datong University , Datong , P. R. China;2. Zhejiang Chemicai Industry Research Institute , Zhejiang , P. R. China;3. Naional Engineering Research Center of Surfactant, China Research Institute of Daily Chemical Industry , Taiyuan , P. R. China |
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| Abstract: | A gluconamide-based trisiloxane surfactant (Si3N2-GA) was prepared via a two-step method. Structure characterization of the Si3N2-GA was performed by fourier transform infrared spectroscopy (FTIR) and proton nuclear magnetic resonance (1H NMR). Surface activity and aggregation behavior in aqueous solution of the Si3N2-GA were investigated by surface tension measurements, dynamic light scattering (DLS), and negative-stained transmission electron microscopy (TEM). The results show that the critical micelle concentration (CAC) and surface tension (γCAC) at the cmc in aqueous solution of the Si3N2-GA are 3.77 × 10?4 M and 20.5 mN · m?1, respectively, and the surfactants can self-assemble into spherical vesicle with diameters in the range from 50 to 150 nm. |
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| Keywords: | Aggregation behavior gluconamide surface activity trisiloxane surfactant |
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