coacervate of polyacrylamide and cationic gemini in france

coacervate of polyacrylamide and cationic gemini in france
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  • Do Gemini surfactants form coacervates?
  • Therefore, compared with corresponding single-chain surfactants, gemini surfactants more easily form coacervates by themselves and the coacervation of gemini surfactants can begin at an extremely low surfactant concentration and cover a larger concentration range.
  • Is cationic ammonium gemini surfactant a coacervate system?
  • Our group reported a coacervate system consisting of cationic ammonium gemini surfactant C 12 C 6 C 12 Br 2 and weakly charged anionic 10% hydrolyzed polyacrylamide (PAM) in aqueous solution . Without any additives, the coacervation starts to occur at very low surfactant concentration and exists in a very wide surfactant concentration region.
  • Do zwitterionic Gemini surfactants form coacervation?
  • In contrast to traditional single-chain surfactants, gemini surfactants more often form coacervation by themselves without any additives. Menger et al. found that zwitterionic gemini surfactants with intermediate size and symmetrical chains can form sponge framework and coalesce into coacervates , .
  • How do Gemini surfactants interact with polyelectrolytes?
  • Each gemini surfactant contains two polar headgroups and two hydrophobic chains, thus both electrostatic interactions and hydrophobic interactions between gemini surfactants and polyelectrolytes are strengthened and there are more controlling and adjustable factors affecting these interactions compared with traditional single-chain surfactants.