Water Wettability / Lubricity

  • Many polymers have hydrophobic surfaces, but often a hydrophilic surface is desired for various applications
  • Sulfonation creates surface sulfonate groups, which are highly hydrophilic
  • The sulfonated hydrophilic surface is highly durable
  • Water drop contact angles of many sulfonated polymers are <20°
  • Sheeting of water on surface tends to evenly wet the surface making the surface highly lubricious