Study On Synthesis And Properties Of Gemini Surfactants

Gemini surfactants is especial structure surfactants which have two hydrophile groups and two hydrophobic groups, and traditional surfactants only have one hydrophile group and one hydrophobic group, Gemini surfactants have better and higher surface activity.This article introduces Gemini surfactants study headway, the capability of the Gemini surfactants and applications foreground are summarized. The synthesis of cation, anion and non-ion Gemini surfactants are expounded. This task mostly synthesis dialkyl disulfonic sodium diphenyl methane and dialkyl disulfonic sodium diphenyl aether gemini surfactants. Reaction course include alkyl reaction, sulfonic reaction and neutralization reaction. With the raw material of diphenyl methane and straight chain alkene at the action of catalyst, dialkyl diphenyl methane is synthesized. Disulfonic dialkyl diphenyl methan is synthesized by sulfonation with chlorine sulfonic acid. After the reaction neutralization, the dialkyl disulfonic sodium diphenyl methane Gemini surfactant is composed. Dialkyl disulfonic sodium diphenyl aether gemini surfactants is synthesized by the same way. Via orthogonal design experiment, review the infection of the temperature, time and catalyst dosage, confirm the best technology condition of alkyl action. Infra-red spectrum analysis indicate the production is anticipative compound. Via landscape orientation parallel gemini surfactants and traditional surfactants .approve the Gemini surfactants have higher surface active than the traditional.