Synthesis and Surface Active Properties of Dimeric Gemini Sulfonate Surfactants
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Jinzhou Zhao
, Ming Zhou , Xu Wang and Yan Yang
Abstract
Dimeric Gemini sulfonate surfactants 1,2-di-(2-oxoypropyl sulfonate-3-alkylether- propoxy) ethane were prepared by the reaction of ethylene glycol diglycidyl ether with long-chain alcohols, followed by sulfonation with 1,3-propane sultone. Ethylene glycol ether was synthesized by the reaction of epichlorohydrin with ethylene glycol. The chemical structures of the prepared compounds were confirmed by FTIR, 1H NMR and elementary analysis. With the increasing length of the carbon chain, the values of their CMC initially decreased. The longer alkyl chain is, the higher melting point is. The Krafft point of Gemini sulfonate surfactants was below 0°C and they had good water solubility. These compounds were superior in surface active properties to general sulfonate surfactants SDS. The efficiency of adsorption at the water/air interface (pC20) of these surfactants was very high. Their foaming properties and wetting ability toward a felt chip, and lime-soap dispersing ability were investigated.
Kurzfassung
Dimere Gemini-Sulfonattenside (1,2-Di-(2-oxoypropylsulfonat-3-alkylether-propoxy)ethane) wurden hergestellt, indem man Ethylenglycoldiglycidylether mit langkettigen Alkoholen umsetzte und nachfolgend mit 1,3-Propansulton sulfonierte. Ethylenglykolether wurde durch Reaktion von Epichlorhydrin mit Ethylenglykol synthetisiert. Die chemische Struktur der hergestellten Verbindungen wurde mittels FTIR, 1H-NMR und der Elementaranalyse festgestellt. Mit zunehmender Kohlenstoffkettenlänge nahmen ihre kritischen Mizellbildungskonzentrationen (CMC) zunächst ab. Je länger die Kohlenstoffkettenlänge ist, umso höher ist der Schmelzpunkt. Der Krafft-Punkt der Gemini-Sulfonattenside lag unter 0°C, alle hergestellten Tenside hatten eine gute Wasserlöslichkeit. Die Verbindungen haben im Vergleich zum Natriumdodecylsulfonat (SDS) überlegene oberflächenaktive Eigenschaften. Die Adsorptionsleistung an der Luft-Wasser-Oberfläche (pC20) dieser Tenside ist sehr hoch. Ihre Schaumeigenschaften und ihre Fähigkeit, ein Filzstück zu benetzen und Kalkseife zu dispergieren, wurden untersucht.
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Articles in the same Issue
- Contents/Inhalt
- Contents
- Abstracts
- Abstracts
- Application
- Enhancing the Surface Properties of Some Amine Alginate Salts with Cationic Surfactant
- Method Development
- Transmission Measurements as Tool to Study Phase Transitions of Liquid Mixtures
- Novel Surfactant
- Synthesis and Surface Active Properties of Dimeric Gemini Sulfonate Surfactants
- Physical Chemistry
- Efficiency Boosting in Technical Grade Sugar Surfactant Based Microemulsions Using Pluronics
- Impact of Surfactants on the Performance of “Green Additives” as Calcium Carbonate Inhibitors for Aqueous Systems
- Study of Surfactant (Benzyldimethylhexadecylammonium Chloride) Effect on Selected Properties of Hydrogels
- Physicochemical Properties of Quaternary Ammonium Surfactants with Hydroxyethyl Groups
- Environmental Chemistry
- Removal of Basic Red 5 on Calcined Kaolinite – Characterization and Adsorption Kinetics
- Conference and Meeting Report
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