Distribution coefficient of surfactants in emulsification

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The polymerization reaction involves styrene, methyl methacrylate, and butyl acrylate. The surfactant/emulsifier used is sodium dodecylbenzenesulfonate. It is necessary to know the distribution coefficient of this surfactant at the two-phase interface. I would like to ask fellow experts what methods can be used to determine this distribution coefficient; ultimately, the \"Maron titration\" method is required to determine the adsorption surface of sodium dodecylbenzenesulfonate on the surface of polymer particles. (The following is in French) I’m asking those who know about the Maron titration – I can’t find any relevant information in China. It involves determining the adsorption area of SDBS on particle surfaces through a Maron-type titration. Thank you everyone! I’m doing my master’s in France, and the courses are taught in French, which is quite troublesome. Thank you all for your help!