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Article: Synthesis of Cleavable Aryl Sulfonate Anionic Surfactants and a Study of their Surface Activity
- Article from:
- Journal of Surfactants and Detergents
- Article date:
- July 1, 2008
- Author:
CopyrightCopyright AOCS Press Jul 2008. Provided by ProQuest LLC. (Hide copyright information)
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Abstract
A series of cleavable aryl sulfonate anionic surfactants were synthesized from cyanuric chloride, aliphatic amine and H-acid mono sodium salt. Their structures were identified by ^sup 1^H NMR, Infrared Spectrum (IR) and Elementary Analysis (EA). Their critical micelle concentrations (CMC) in aqueous solutions at 25 °C were determined by a steady-state fluorescence probe method and a surface-tension method. With the increasing length of the carbon chain, the value of their CMCs and surface tensions under CMC (γ^sub CMC^) initially decreased and then reached a minimum (respectively 2.63 à 10^sup -5^ mol L^sup -1^ and 28.29 mN m^sup -1^) when the carbon number was 10. The CMC ...