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Synthesis and Surface Properties of Novel Gemini Surfactants

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Published/Copyright: April 5, 2013
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Abstract

Novel Gemini surfactants containing amide group linkage were prepared with fatty acid, diamine and dihalide by simple organic reaction, and characterized with IR, and elemental analysis (EA). As the results show, the structures of the products obtained correspond to the target compounds designed. By surface tension scanning, these Gemini surfactants have excellent surface activity with low c.m.c. and surface tension, the lowest c.m.c value was 9.12 × 10−6 mol/L for surfactant Bi-18(4).

Kurzfassung

Es wurden neue Geminitenside, die eine Amidgruppe als Verbindungsgruppe besitzen, in einer einfachen organischen Reaktion aus Fettsäure, Diamin und Dihalogenid präpariert. Sie wurden mit IR-Spektrometrie und Elementaranalyse charakterisiert. Wie die Ergebnisse zeigen, entsprechen die Strukturen der erhaltenen Produkte denen der Zielprodukte. Das Scanning der Oberflächenspannung lieferte, dass diese Geminitenside eine hervorragende Oberflächenaktivität besitzen, was aus der niedrigen c.m.c. und Oberflächenspannung deutlich wird. Der niedrigste c.m.c.-Wert beträgt 9.12 × 10−6 mol/L für das Tensid Bi-18(4).


PhD. Zhang Zhang, Department of Chemical Engineering and Technology of Shanghai UniversityNo. 333, Nan-Chen road, Shanghai 200444, P.R. China, Tel.: 0086-021-66137721, Fax: 0086-021-66137721, E-Mail:

Zhang Zhang (Corresponding Author): male, PhD on applied chemistry, an associate professor of the Department of Chemical Engineering and Technology of Shanghai University, Shanghai, China. Main research areas are applied chemistry and green chemical technology.

Zhang Zhen-Xian: Female, a post-graduate of the Department of Chemical Engineering and Technology of Shanghai University, Shanghai, China. Main research area is synthesis of new surfactants.

Liu Yu-rong: male, a post-graduate of the Department of Chemical Engineering and Technology of Shanghai University, Shanghai, China. Main research area is synthesis of new surfactants.

Chen Jie: male, PhD, a professor of the Department of Chemical Engineering and Technology of Shanghai University, Shanghai, China. Main research areas are applied chemistry and polymer.

Zhang Yu: male, BS, undergraduate of the Department of Chemical Engineering and Technology of Shanghai University, Shanghai, China. Main research area is determination of new surfactants.


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Received: 2011-09-26
Revised: 2012-06-16
Published Online: 2013-04-05
Published in Print: 2012-09-01

© 2012, Carl Hanser Publisher, Munich

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