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Solute and penetrant diffusion in swellable polymers: X. Swelling of multiethylene glycol dimethacrylate copolymers
Author(s) -
Walker Curt M.,
Peppas Nikolaos A.
Publication year - 1990
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.1990.070391002
Subject(s) - comonomer , swelling , copolymer , penetrant (biochemical) , methacrylate , materials science , polymer chemistry , polymer , ethylene glycol dimethacrylate , chemical engineering , composite material , methacrylic acid , chemistry , organic chemistry , engineering
The swelling behavior of copolymers containing 2‐hydroxyethyl methacrylate and various multiethylene glycol dimethacrylates was examined at 25°C. These highly crosslinked copolymers show some hydrophilic behavior due to the hydroxyl groups of HEMA. Analysis of the swelling data indicates and anomalous water transport in the network, which depends on the degree of crosslinking attained according to the dimethacrylate comonomer molar fraction in the copolymerization feed. Thermomechanical analysis data were used to further characterize the network structure.