In the present work a series of fluorinated quaternary ammonium salts were synthesized in two steps. The physical properties of the obtained surfactants were characterized by DLS, zeta potential, viscosity, and Cryo-SEM. The surfactants with a long fluorinated chain form long and highly flexible aggregates that lead to highly viscous solutions and the formation of an entangled network made of flexible worm-like micelles. The viscoelastic properties of ...