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Permeation of water through some hydrogels
Author(s) -
Refojo Miguel F.
Publication year - 1965
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1965.070091019
Subject(s) - self healing hydrogels , polyelectrolyte , methacrylate , permeation , chemical engineering , materials science , polymer chemistry , water transport , water flow , chemistry , membrane , polymer , composite material , copolymer , biochemistry , environmental engineering , engineering
The permeability to water and the average pore radius of transparent hydrogels from glyceryl methacrylate (GMA), 2‐hydroxyethyl methacrylate (HEMA), 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 (74–94% water), but in HEMA hydrogel (40% water), and PGMA hydrogels (40–60% water), diffusion 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.