English, Article edition: ANIONIC GEMINI SURFACTANTS: SYNTHESIS AND SURFACE ACTIVE PROPERTIES DIPTI SHUKLA; V. K. TYAGI

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Physical Description
  • article
Language
  • English

Edition details

Title
  • ANIONIC GEMINI SURFACTANTS: SYNTHESIS AND SURFACE ACTIVE PROPERTIES
Author
  • DIPTI SHUKLA
  • V. K. TYAGI
Physical Description
  • article
Notes
  • New compounds bearing two phosphate groups and two long chain (dodecyl) were prepared by two-step reaction: (i) phosphorylation of dodecanol with pyrophosphoric acid, (ii) reaction of dodecyl phosphate with N(CH3)4OH and 1,6-dibromo hexane. The effect of reaction variables like time and molar ratio of reactants on yield has also been reported. The 1:2:0.5 molar ratio of reactants (dodecyl phosphate, N(CH3)4OH, and Br(CH2)6 Br, respectively) and 3 h duration resulted to give maximum yield of anionic gemini surfactants. The structure of synthesized surfactant was investigated by modern analytical techniques, viz. FT-IR, 1H NMR, 13C NMR.Amphipathic disodium phosphates were obtained by neutralization of free acids with sodium hydroxide and their surface active properties in aqueous solution were measured. These disodium phosphates possessed 77.3% anionic content and showed good water solubility. Foaming properties and wetting ability were also evaluated.
  • Anionic gemini, bis(phosphate), anionic content, wetting, foaming
  • RePEc:wsi:srlxxx:v:14:y:2007:i:05:p:991-997
Language
  • English
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