Adsorption-desorption mechanism of a cationic polyelectrolyte based on dimethylaminoethyl polymethacrylates at the water/1,2-dichloroethane interface

- Polyelectrolyte Eudragit E100 adsorbs at an electrified liquid/liquid interface.
- The response depends on the pH, on the organic electrolyte, and on time during multi-cyclic voltammetry experiments.
- A diffusion process coupled to an adsorption or re-arrangement of E100 molecules at the interface occurs.
- Strong attractive interaction between the adsorbed species at the interface is postulated.
- The lateral interaction parameter was calculated.