Lijun Li1, Juan Mao2, Xiaojun Deng2, Jianhua Zhao2, Zhihong Tang3
1Academic Affairs Department of Nanchong Campus, Southwest Petroleum University, Nanchong, Sichuan, 637001, China
2School of New Energy and Materials, Southwest Petroleum University, Nanchong, Sichuan, 637001, China
3China Oilfield Services Ltd. Drilling Division Beijing, Beijing, 101149, China
In this paper, a series of sulfonated quaternary ammonium salt amphoteric surfactants were obtained by using short-chain alkyl alcohol as the starting material, producing short-chain alkyl glycidyl ethers through nucleophilic substitution with epichlorohydrin, then generating short-chain alkyl tertiary amines through ring-opening reaction with dimethylamine, and finally undergoing quaternization reaction with 3-chloro-2-hydroxypropanesulfonate sodium. By controlling variables, the synthesis conditions of sulfonated quaternary ammonium salt type amphoteric surfactant were optimized; the structure was characterized by Fourier transform infrared spectrometer, and its surface and interface properties were evaluated. The results show that the structure of the synthesized product is consistent with the target product; the best catalyst required for the synthesis of the alkyl glycidyl ether intermediate is tetrabutylammonium bromide; the reaction conditions for ring-opening reaction to generate tertiary amine are optimized as follows: Pentyl glycidyl ether): n[NH(CH3)2]=4:3, the reaction temperature is 55°C, and the reaction time is 10h; the yield reaches the highest, when the quaternization reaction is carried out at the catalyst - binary compound acid and the reaction temperature is 65°C.; n-octyl sulfonated ammonium salt amphoteric surfactant has the highest surface activity, and can reduce the surface tension of water to 29.1mN/m under the concentration of CMC; the foam performance of n-octyl sulfonated ammonium salt Optimum, isopentyl sulfonated quaternary ammonium salt has the best low foam performance. A series of sulfonated quaternary ammonium amphoteric surfactants have excellent surface activity and interfacial activity, which provides a practical reference for the synthesis and application of this type of surfactant.
Sulfonated Quaternary Ammonium Salt Type, Amphoteric Surfactant, Synthesis of Short-chain Alkyl Alcohol, Performance Research
Lijun Li, Juan Mao, Xiaojun Deng, Jianhua Zhao, Zhihong Tang. Synthesis and Properties of a New Sulfonated Quaternary Ammonium Salt Amphoteric Surfactant. Academic Journal of Materials & Chemistry (2023) Vol. 4, Issue 5: 51-60. https://doi.org/10.25236/AJMC.2023.040508.
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