Designing the head group of CO2-triggered switchable surfactants

Lauren M Scott, Tobias Robert, Jitendra Rameshlal Harjani, Philip G Jessop

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The synthesis of a small library of nitrogen-based CO 2- switchable cationic surfactants with different head groups is described. These switchable surfactants can be switched on by addition of CO 2 and switched off by the removal of CO 2. The structure of the switchable head group affects the surfactant s basicity, solubility, heat of protonation, rate and extent of switching, and ability to reversibly stabilize and demulsify oil-water emulsions
Original languageEnglish
Pages (from-to)4925 - 4931
Number of pages7
JournalRSC Advances
Issue number11
Publication statusPublished - 2012
Externally publishedYes

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