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2010•Unpublished venueRequires access

Synthesis and surface activities of quaternary ammonium Gemini surfactants

Huang You-qun

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Abstract

A new quaternary ammonium Gemini surfactant was prepared from N-methylaminoethanol,1,3-dibromopropane and dodecyl bromide,and their surface activities were evaluated by adopting surface tension method and electrical conductivity method.The results show that the Gemini surfactant has better surface activities than the reported surfactant 12-3-12 does.The CMC and γCMC values were 0.237 1 mmol/L and 25.2 mN/m respectively,which were very low.

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What this paper is about

A new quaternary ammonium Gemini surfactant was prepared from N-methylaminoethanol,1,3-dibromopropane and dodecyl bromide,and their surface activities were evaluated by adopting surface tension method and electrical conductivity method.The results show that the Gemini surfactant has better surface activities than the reported surfactant 12-3-12 does.The CMC and γCMC values were 0.237 1 mmol/L and 25.2 mN/m respectively,which were very low.

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Available abstract

A new quaternary ammonium Gemini surfactant was prepared from N-methylaminoethanol,1,3-dibromopropane and dodecyl bromide,and their surface activities were evaluated by adopting surface tension method and electrical conductivity method.The results show that the Gemini surfactant has better surface activities than the reported surfactant 12-3-12 does.The CMC and γCMC values were 0.237 1 mmol/L and 25.2 mN/m respectively,which were very low.

Key concepts: Pulmonary surfactant, Surface tension, Ammonium, Ammonium bromide, Bromide, Chemistry, Chemical engineering, Materials science

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