Novel sorbent hydrogels containing acrylamide/sodium vinylsulfonate,
carboxymethyl cellulose and zeolite were synthesized with free radical solution
polymerization by using ammonium persulfate/N,N,N’,N’-tetramethylethyle-nediamine
as redox initiating pair in presence of poly(ethylene glycol) diacrylate as
crosslinker. It was to investigate the water uptake properties of series of the
novel hydrogels, the semi IPNs and the hybrid/biohybrid composite hydrogel
sorbents synthesized in this study. Water uptake studies were performed in
water and in water-solvent (acetone, methanol and tetrahydrofuran) binary
mixtures at 25°C, gravimetrically. Some swelling and
diffusion parameters were calculated and discussed. It has been seen that the
lower equilibrium swelling factor values in all solvent compositions in
comparison with the equilibrium swelling factor values in water.
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