Abstract
The equilibrium and dynamic swelling behaviour of hydrogels containing methacrylic acid or various acrylamides was studied as a function of copolymer composition. In all cases, the comonomer was 2-hydroxyethyl methacrylate, methyl methacrylate or N-vinyl-2-pyrrolidone. It is shown that pH-sensitive behaviour with a wide range of swelling ratios could be obtained using a range of compositional changes. The dynamic swelling behaviour was a function of the acidity of the buffered solution.
Publication types
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Buffers
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Colloids / chemistry
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Hydrogel, Polyethylene Glycol Dimethacrylate
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Hydrogen-Ion Concentration
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Methacrylates / chemistry*
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Methylmethacrylate
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Methylmethacrylates / chemistry
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Molecular Weight
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Polyethylene Glycols / chemistry*
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Pyrrolidinones / chemistry
Substances
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Buffers
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Colloids
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Methacrylates
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Methylmethacrylates
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Pyrrolidinones
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Methylmethacrylate
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Hydrogel, Polyethylene Glycol Dimethacrylate
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Polyethylene Glycols
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hydroxyethyl methacrylate
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N-vinyl-2-pyrrolidinone