Permeation of water through some hydrogels

✍ Scribed by Miguel F. Refojo

• Publisher: John Wiley and Sons
• Year: 1965
• Tongue: English
• Weight: 552 KB
• Volume: 9
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1965.070091019

✦ Synopsis

The permeability to water and the average pore radius of transparent hydrogels from glyceryl methacrylate (GMA), 2-hydroxyethyl methacrylate ( m M A ) , propylene glycol monoacrylate (PGMA), and a polyelectrolyte complex were determined. The transport process was found to be a predominantly viscous flow in the polyelectrolyte complex and in the more dilute GMA hydrogels (7694% water), but in HEMA hydrogel (40% water), and PGMA hydrogels (4040% water), dzusion seemed to play a more important part in the movement of water through the gel. These hydrogels are potentially useful for surgical implants in the cornea. A comparison is made with the flow conductivity of the corneal stroma at normal hydration.