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Citation: FANG Hai-Lin, YUAN Shu-Jun. Synthesis and Antibacterial Activity of a Complexing Surfactant and its Cu(Ⅱ) Complex[J]. Chinese Journal of Applied Chemistry, ;2007, 24(2): 178-182. shu

Synthesis and Antibacterial Activity of a Complexing Surfactant and its Cu(Ⅱ) Complex

FANG Hai-Lin ^, ,
YUAN Shu-Jun

1.
School of Chemical and Biological Engineering, Yancheng Institute of Technology, Yancheng 224003

Corresponding author: FANG Hai-Lin,
Received Date: 23 March 2006
Available Online: 7 July 2006
Fund Project: 江苏省高校自然科学研究项目(05KJB150142) (05KJB150142)

A new complexing surfactant with the Schiff base structure was synthesized from p-Cresol,lauric acid and ethylenediamine by reactions of acylation,fries rearrangement,sulfonation and condensation.The total synthetic yield of the surfactant was 39.2%.The Cu²⁺ complex with this surfactant was also prepared in synthetic yield of 87.6%.The surface tension and foam height of the surfactant were tested at 20℃,CMC of the surfactant was 2.5×10^-4mol/L,the lowest surface tension was 30 mN/m,which showed the surfactant has high surface activity.The stability constant of the complex was determined by spectrophotometric method to be 1.91×10⁸ in borax buffer solution at 25℃.The experimental result revealed that the surfactant is easily coordinated with Cu²⁺ to form stable complex.Antibacterial test showed that the complex has a high antibacte-rial activity against E.coli,S.aureus and B.subtilis,especially against S.aureus with the minimum bacteri-cidal concentration at 96.1×10^-6g/mL.
- surfactant,
- Cu complex,
- stability constant,
- antibacterial activity
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