Application Note Automotive Test Systems | Process & Environmental | Medical | Semiconductor | Scientific Explore the future Zeta Potential of Polyelectrolytes AN208 Application Note The zeta potential of polyethylenimine, PEI, is measured as a function of polymer concentration with the SZ-100 Nanoparticle Analyzer. Zeta potential decreases as polyelectrolyte concentration is increased due to the increasing ionic strength of the suspension and intermolecular interactions. Charged polymers, that is, polyelectrolytes can be analyzed with the SZ-100. Introduction Polyelectrolytes are polymer chains with an electrolyte group on every repeat unit. These polymers are charged when dissolved in a polar solvent due to dissociation of small counterions that leave behind a charged m

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