Water Transport Under Osmotic Pressure Mismatch

Water Transport Under Osmotic Pressure Mismatch 

Under osmotic pressure gradients between the two aqueous phases of W/OAV emulsions, water may migrate either from the internal to the external phase or vice versa, depending on the direction of the osmotic pressure gradient. This process is entropically driven and is another manifestation of compositional ripening. Such 

The lifetime of double emulsions is considerably shortened by the rapid diffusion of the water-soluble small-molecule surfactants toward the droplet interface. 

Rgure 6.16. Wl/O and OAV2 interfaces in (a) visual contact and (b) no visual contact. (Reproduced with permission from [32].) 

Rgure 6.17. Effects of SMO (span 80) concentration in the rate of radius variation in W/OW, when Wl/O and OAV2 interfaces are at (a) visual contact and (b) no visual contact. W1 = pure water O = n-hexadecane -I-SMO, W2 = 5 10-3 lution. (Reproduced with permission from [32].) 

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Water Transport Under Osmotic Pressure Mismatch... 

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