Abstract
We prepared a fluorinated gemini surfactant containing a disulfide bond in its spacer chain, [C₈F₁₇(CH₂)₃N(CH₃)₂CH₂CH₂SSCH₂CH₂N(CH₃)₂(CH₂)₃C₈F₁₇]2Cl, and its analogue with a hexamethylene spacer. Monomeric thiol surfactant, [C₈F₁₇(CH₂)₃N(CH₃)₂CH₂CH₂SH]Cl, was readily produced by the cleavage of the gemini surfactant using dithiothreitol in water. The critical micelle concentration was determined using surface tension, conductivity, and fluorescence probe methods. The critical micelle concentration of the monomeric surfactant was significantly larger than that of the gemini surfactant. The surface tension of aqueous solution for the cleaved monomeric thiol surfactant returned gradually to the original value through the formation of the disulfide bond via air oxidation.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
