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Synthesis and Surface Activity of Guerbet Betaine Surfactants with Ethylene Oxide Groups

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Veröffentlicht/Copyright: 1. März 2013
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Tenside Surfactants Detergents
Aus der Zeitschrift Tenside Surfactants Detergents Band 49 Heft 3

Abstract

Three series of Guerbet betaine surfactants with ethylene oxide groups were synthesized by Guerbet alkyl polyoxyethylene ether surfactants, epichlorohydrin, dimethylamine and sodium chloro-acetate. Their structures were confirmed by MS. The critical micelle concentrations (CMC) and surface tension at CMC (γCMC) of all prepared Guerbet betaine surfactants were determined by K100C processor tensiometer with the Wilhelmy-plate method at 25°C. It is found that synthesized surfactants exhibit great efficiency of reducing surface tension. As the number of ethylene oxide groups increases, the γCMC gradually increases. As the length of the hydrophobic chain of Guerbet betaine surfactants increases, the γCMC increases firstly and then decreases.

Kurzfassung

Drei Reihen von Guerbetbetainentensiden mit Ethylenoxidgruppen wurden synthetisiert aus Guerbetalkylpolyoxiethylenethern, Epichlorhydrin, Dimethylamin und Natriumchloracetat. Ihre Strukturen wurden mittels Massenspektrometrie (MS) bestätigt. Die kritische Mizellbildungkonzentration (CMC) und die Oberflächenspannung bei der CMC (γCMC) aller hergestellen Guerbetbetaintensiden wurden mit der Wilhelmy-Methode (Tensiometer-Prozessor: K100C) bei 25°C bestimmt. Die synthetisierten Tenside reduzierten die Oberflächenspannung sehr stark. Bei steigender Anzahl der Ethylenoxidgrupppen, nimmt γCMC stufenweise zu. Wenn die Länge der hydrophoben Kette der Guerbetbetaintensiden ansteigt, dann steigt zunächst γCMC, nimmt dann aber ab.

Key words:: Synthesis; Guerbet betaine surfactant; ethylene oxide groups; surface tension
Stichwörter:: Synthese; Guerbetbetainentenside; Ethylenoxidgruppen; Oberflächenspannung
3 Dr. Weihong Qiao, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China. E-mail:

Weihong Qiao was born in 1968. She obtained a Master's Degree from Dalian University of Technology in 1994 and a PhD from the same university in 2000. Since 1994, she has been teaching and working at Dalian University of Technology. Her main field of research is the synthesis and physical chemisty of surfactants.

Yingchun Cui was born in 1986. She obtained her Bachelor's Degree from Nanyang Normal University in 2009. She is now taking a master's degree in the synthesis and physical chemistry of surfactants at Dalian University of Technology.

Youyi Zhu was born in 1963. He obtained a Master's Degree from Wuhan University of Technology and a PhD from Beijing University of Science and Technology. His main field of research is oilfield chemical.

Hongyan Cai was born in 1978. He obtained a Master's Degree from Petro China Research Institute of Petroleum Exploration and Development. His main field of research is oilfield chemical.

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Received: 2011-09-22
Revised: 2011-10-04
Published Online: 2013-03-01
Published in Print: 2012-05-01

© 2012, Carl Hanser Publisher, Munich

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  7. Scientific Results and Economic Effects from the Centre for Surfactants Based on Natural Products (SNAP)
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  11. Acrylic Acid-Allylpolyethoxy Carboxylate Copolymer Dispersant for Calcium Carbonate and Iron(III) Hydroxide Scales in Cooling Water Systems
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  17. Electrical Properties of PANI/Chalcogenide Junctions Doped with Ionic Liquids Anions
  18. Synthesis
  19. Synthesis of Quaternary Derivatives of Ortho-Coco Di-Amido Toluene and Investigation of these Compounds as Cationic Bitumen Emulsifier
  20. Synthesis and Surface Activity of Guerbet Betaine Surfactants with Ethylene Oxide Groups
  21. Research Group Portrait
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https://doi.org/10.3139/113.110190
Schlagwörter für diesen Artikel
Synthesis; Guerbet betaine surfactant; ethylene oxide groups; surface tension

Artikel in diesem Heft

  1. Contents/Inhalt
  2. Contents
  3. Abstracts
  4. Abstracts
  5. 7th European Detergents Conference (EDC)
  6. Biosurfactants as Antimicrobial Ingredients for Cleaning Products and Cosmetics
  7. Scientific Results and Economic Effects from the Centre for Surfactants Based on Natural Products (SNAP)
  8. Application
  9. Preparation and Performance of Catanionic Surfactants
  10. Environmental Chemistry
  11. Acrylic Acid-Allylpolyethoxy Carboxylate Copolymer Dispersant for Calcium Carbonate and Iron(III) Hydroxide Scales in Cooling Water Systems
  12. Novel Surfactants
  13. Lyotropic Liquid Crystals Formed in Brij35/Copolymer/Water System
  14. Physical Chemistry
  15. Micellization of Alkyl Trimethyl Ammonium Bromides in Aqueous Solutions–Part 1: Critical Micelle Concentration (CMC) and Ionization Degree
  16. Review
  17. Electrical Properties of PANI/Chalcogenide Junctions Doped with Ionic Liquids Anions
  18. Synthesis
  19. Synthesis of Quaternary Derivatives of Ortho-Coco Di-Amido Toluene and Investigation of these Compounds as Cationic Bitumen Emulsifier
  20. Synthesis and Surface Activity of Guerbet Betaine Surfactants with Ethylene Oxide Groups
  21. Research Group Portrait
  22. Investigations in the Stranski-Laboratorium of the TU Berlin – Physical Chemistry of Colloidal Systems – Going Towards Complexity and Functionality
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