Is polyacrylonitrile hydrophobic or hydrophilic?

Why polyacrylonitrile (PAN) is changing membrane technology

When designing advanced filtration systems, material choice is everything. A key player in this field is polyacrylonitrile (PAN), a polymer widely known for its excellent hydrophilicity. Unlike hydrophobic materials that tend to repel water and trap contaminants, PAN’s affinity for water allows fluids to pass through efficiently while maintaining high performance.

Beyond its water-loving nature, PAN brings exceptional chemical and solvent stability to the table. These traits make it an ideal support layer for thin-film composite (TFC) membranes. Because it can withstand harsh environments without degrading, engineers can push filtration boundaries further.

The unique properties of PAN unlock new possibilities in demanding separation tasks, including forward osmosis and organic solvent nanofiltration. By bridging the gap between durability and permeability, PAN continues to be a go-to material for modern industrial and environmental filtration challenges.