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Swelling Kinetics of Poly(acrylamide)/Poly(mono-n-alkyl itaconates) Hydrogels

✍ Scribed by Katime, I.; Velada, J. L.; Novoa, R.; Díaz de Apodaca, E.; Puig, J.; Mendizabal, E.

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
356 KB
Volume
40
Category
Article
ISSN
0959-8103

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✦ Synopsis

Hydrogels of mono-n-alkyl itaconate/N-acrylamide have been synthesised. The swelling process at three different pH values (acid, neutral and basic) has been studied. The experimental data indicate that our hydrogels follow second-order swelling kinetics. According to this, the kinetic constant, K, , and the swelling capacity at equilibrium, W, , have been calculated. The influence of the solvent pH and the molar mass of the mono-n-alkyl itaconate monomeric unit has been analysed. It seems that the general balance between the hydrogen bonding and the hydrophobic interactions regulates the swelling process of these hydrogels.

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