Rheological Properties and Emulsification States of the Emulsions Obtained Using Water-Soluble Amphiphilic Polymers and Lipophilic Surfactants

Emulsified particles of O/W type emulsions using alkyl-type-associative water-soluble polymers were minimized and viscosity- and elasticity-increase occurred by adding a small amount of lipophilic surfactant. Rheology measurements of the emulsions were performed, and the emulsification states were considered. Physical cross-linking is thought to be made through the interaction between the hydrophobic moieties in polymer and the lipophilic surfactants at the surface of emulsified droplets. This network structure holds emulsified particles in fine states preventing from phase inversion and separation.