Poly(styrenesulfonic acid), sodium salt (MW ~1,000,000)

Poly(styrenesulfonic acid), sodium salt is a high-molecular-weight polyelectrolyte with excellent water solubility and strong anionic charge density. It is widely used in ion-exchange membranes, dispersants, and conductive coatings due to its high charge retention and chemical stability.

Applications:

Ion-Exchange Membranes & Fuel Cells: Enhances proton conductivity and stability in membrane-based energy applications.

Water Treatment & Dispersants: Functions as a scale inhibitor and stabilizer in wastewater treatment.

Electronics & Conductive Coatings: Provides anti-static properties and charge dissipation in coatings.

Biomedical & Pharmaceutical Applications: Used as a drug carrier and biocompatible additive in controlled-release systems.

Paper & Textile Processing: Improves surface interactions and ink adhesion in specialty paper and fabrics.