Viscoelastic polyelectrolyte solutions destabilize the receding contact line of sliding drops on hydrophobic surfaces, producing filaments, with cationic and non-ionic polymers promoting the instability while anionic ones do not due to wetting differences.
The penetration of a fluid into a porous medium or hele-shaw cell containing a more viscous liquid
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Polyelectrolyte adsorption at the solid-liquid interface favors receding contact line instability
Viscoelastic polyelectrolyte solutions destabilize the receding contact line of sliding drops on hydrophobic surfaces, producing filaments, with cationic and non-ionic polymers promoting the instability while anionic ones do not due to wetting differences.