Hydrogels with different degrees of hydrophilicity and cross-link densities were synthesized starting from epoxy monomers and aliphatic amines. Their chemical cross-link density was varied by changing the functionality of monomers or the resin/hardener ratio. Physical cross-links were introduced by incorporating in the polymer network hydrophobic segments, which in aqueous media give hydrophobic interaction. It was shown that the swelling degree, thermosensitivity and mechanical properties of these hydrogels can be easily tailored by changing the concentration and relative amount of physical and chemical cross-links.
A versatile method for obtaining hydrophobically modified hydrogels
Bignotti F.
;Sartore L.;Spagnoli G.
2018-01-01
Abstract
Hydrogels with different degrees of hydrophilicity and cross-link densities were synthesized starting from epoxy monomers and aliphatic amines. Their chemical cross-link density was varied by changing the functionality of monomers or the resin/hardener ratio. Physical cross-links were introduced by incorporating in the polymer network hydrophobic segments, which in aqueous media give hydrophobic interaction. It was shown that the swelling degree, thermosensitivity and mechanical properties of these hydrogels can be easily tailored by changing the concentration and relative amount of physical and chemical cross-links.File in questo prodotto:
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