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Citation: LI Xiu-Zhi, ZHAO Jian-Xi. Effect of Quaternary Ammonium Gemini Surfactant C₁₂-6-C₁₂·2Br on the Micellization of SDS in Aqueous Solution[J]. Chinese Journal of Applied Chemistry, ;2003, 20(7): 690-692. shu

Effect of Quaternary Ammonium Gemini Surfactant C₁₂-6-C₁₂·2Br on the Micellization of SDS in Aqueous Solution

LI Xiu-Zhi ,
ZHAO Jian-Xi ^,

1.
Department of Chemistry, Fuzhou University, Fuzhou 350002

Corresponding author: ZHAO Jian-Xi,
Received Date: 18 December 2002
Available Online: 7 April 2003
Fund Project: 国家自然科学基金(20173010) (20173010)福建省自然科学基金(E0110012)资助项目 (E0110012)

C₁₂-6-C₁₂·2Br violently interacts with sodium dodecyl sulfate(SDS) leading to the formation of mixed micelles. When molar fraction(x₂) of C₁₂-6-C₁₂·2Br in the bulk solution was 10.0%, the total critical micelle concentration(cmc_T) of the mixed solution was found to be 0.043 7 mmol/L, and the micelle aggregation number N_T and the molar fraction(x₂^M) of C₁₂-6-C₁₂·2Br in the mixed micelle were 17.4 and 49.0%, respectively. With x₂ increased to 16.7%, cmc_T further decreased and N_T gradually increased, but x₂^M almost remained unchanged. The average value of the interaction parameter(β^M) calculated by the theory of regular solution equals to -33.3.
- quaternary ammonium Gemini surfactant,
- sodium dodecyl sulfate,
- mixed micellization
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Effect of Quaternary Ammonium Gemini Surfactant C₁₂-6-C₁₂·2Br on the Micellization of SDS in Aqueous Solution