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Synthesis zwitterionic gemini surfactants with amide groups

Zhang Zhen-xian

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Abstract

A new type of zwitterionic gemini surfactants was synthesized with fatty acid,epichlorohydrin and N,N-dimethyl propylene diamine.The structure of this gemini surfactant was characterized by IR,MS and elemental analysis,which matches to that of design.As the results showed that it has excellent surface activity,their critical micelle concentration were 6.4×10-5 and 4.6×10-5 mol/L with the lowest surface tension 26.5 and 30.8 mN/m for D-12 and D-14 respectively.Further more,the water-oil interface,effecting of the salt and the lime soap dispersed property were primarily studied.

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What this paper is about

A new type of zwitterionic gemini surfactants was synthesized with fatty acid,epichlorohydrin and N,N-dimethyl propylene diamine.The structure of this gemini surfactant was characterized by IR,MS and elemental analysis,which matches to that of design.As the results showed that it has excellent surface activity,their critical micelle concentration were 6.4×10-5 and 4.6×10-5 mol/L with the lowest surface tension 26.5 and 30.8 mN/m for D-12 and D-14 respectively.Further more,the water-oil interface,effecting of the salt and the lime soap dispersed property were primarily studied.

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Available abstract

A new type of zwitterionic gemini surfactants was synthesized with fatty acid,epichlorohydrin and N,N-dimethyl propylene diamine.The structure of this gemini surfactant was characterized by IR,MS and elemental analysis,which matches to that of design.As the results showed that it has excellent surface activity,their critical micelle concentration were 6.4×10-5 and 4.6×10-5 mol/L with the lowest surface tension 26.5 and 30.8 mN/m for D-12 and D-14 respectively.Further more,the water-oil interface,effecting of the salt and the lime soap dispersed property were primarily studied.

Key concepts: Pulmonary surfactant, Critical micelle concentration, Surface tension, Amide, Chemistry, Epichlorohydrin, Micelle, Salt (chemistry)

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