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Synthesis and performance of rosin-based quaternary ammonium Gemini surfactants

Shibin Shang

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Abstract

The rosin-based quaternary ammonium Gemini surfactants are synthesized from dehydroabietylamine by reaction with α,ω-bisbromoalkanes.Their structures are characterized by IR and 1H-NMR spectroscopy.The surface activities of them are investigated and analyzed.The results show that they have higher surface activities for their critical micelle concentration values between(2.5-5.5)×10-5 mol/L,γCMC values of 23.7-30.3 mN/m,excellent emulsifying power(with benzene) and foaming power.

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What this paper is about

The rosin-based quaternary ammonium Gemini surfactants are synthesized from dehydroabietylamine by reaction with α,ω-bisbromoalkanes.Their structures are characterized by IR and 1H-NMR spectroscopy.The surface activities of them are investigated and analyzed.The results show that they have higher surface activities for their critical micelle concentration values between(2.5-5.5)×10-5 mol/L,γCMC values of 23.7-30.3 mN/m,excellent emulsifying power(with benzene) and foaming power.

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Available abstract

The rosin-based quaternary ammonium Gemini surfactants are synthesized from dehydroabietylamine by reaction with α,ω-bisbromoalkanes.Their structures are characterized by IR and 1H-NMR spectroscopy.The surface activities of them are investigated and analyzed.The results show that they have higher surface activities for their critical micelle concentration values between(2.5-5.5)×10-5 mol/L,γCMC values of 23.7-30.3 mN/m,excellent emulsifying power(with benzene) and foaming power.

Key concepts: Rosin, Critical micelle concentration, Ammonium, Micelle, Chemistry, Benzene, Quaternary, Nuclear chemistry

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