Accessible Requires Authentication Published by De Gruyter January 23, 2020

Synthesis and Properties of a Quaternary Ammonium Salt Gemini Surfactant with Diethyl Ether as the Spacer Group

Synthese und Eigenschaften eines quartären Ammoniumsalz-Gemini-Tensids mit Diethylether als Spacergruppe
Zhifei Wang, Yunling Li, Yongbo Song, Jun Li and Qinghong Zhang


A quaternary ammonium salt gemini surfactant (C12N)2O with diethyl ether as the spacer group was synthesized by dodecyl dimethyl amine and 2-chloroethyl ether. The structure of the product was confirmed by Fourier transform infrared spectra (FT-IR) and proton nuclear magnetic resonance spectra (1H NMR), which showed that the structure of the synthesized product was consistent with the theoretical structure. We tested the surface tension of (C12N)2O at 25°C and found the critical micelle concentration (CMC) was roughly 2 orders of magnitude lower than that of dodecyl trimethylamine chloride (DTAC). Gemini structure and the unique diethyl ether spacer group endowed the novel amphiphile excellent properties including low contact angle and high antistatic property. (C1 2N)2O showed good compatibility with alcohol ether sulfate (AES) and dodecylbenzene sulfonate (LAS) in surfactant mixed systems. When the ratio of (C12N)2O:AES was 1:4 and (C12N)2O:LAS 1:9, the emulsifying properties were preferable to single surfactant.


Ein quaternäres Ammoniumsalz-Gemini-Tensid (C12N)2O mit Diethylether als Spacergruppe wurde durch Dodecyldimeth ylamin und 2-Chlorethylether synthetisiert. Die Struktur des Produkts wurde durch Fourier-Transformations-Infrarotspektren (FT-IR) und Protonenkern resonanzspektrum (1H-NMR) bestätigt, die zeigten, dass die Struktur des synthetisierten Produkts mit der theoretischen Struktur übereinstimmte. Wir testeten die Oberflächenspannung von (C12N)2O bei 25°C und stellten fest, dass die kritische Mizellenbildungskonzentration (CMC) ungefähr 2 Größenordnungen niedriger war als die von Dodecyltrimethylaminch lorid (DTAC). Die Geministruktur und die einzigartige Diethylether-Spacergrup pe verliehen dem neuen Amphiphil hervorragende Eigenschaften, einschließlich eines geringen Kontaktwinkels und hoher antistatischer Eigenschaften. (C12N)2O zeigte eine gute Verträglichkeit mit Alkoholethersulfat (AES) und Dodecylbenzensulfonat (LAS) in Tensidmischungen. Wenn (C12N)2O:AES 1:4 und (C12N)2O:LAS 1:9 war, waren die Emulgiereigenschaften einem einzelnen Tensid vorzuziehen.

Correspondence address Prof. Yunling Li, China Research Institute of Daily Chemisry, 34 Wenyuan Street, Taiyuan, Shanxi Province, 030001, P.R. China, Tel.: +86-351-4046827, Fax: +86-351-4040802, E-Mail:


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Received: 2018-06-24
Accepted: 2019-09-18
Published Online: 2020-01-23
Published in Print: 2020-01-21

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