Effect of glutaraldehyde on swelling kinetics of chitosan-polyether hydrogel

Chitosan-polyether hydrogels were prepared with chitosan and polyether using glutaraldehyde as crosslinker.The swelling mechanism of chitosan-polyether hydrogel was studied,the concentration of glutaraldehyde affecting swelling ratio,swelling rate and swelling kinetics of this hydrogel were researched.The result showed that the concentration of glutaraldehyde was not only the main factor affecting the swelling ratio,which reduced when the concentration of glutaraldehyde increased,but also a factor affecting its dynamic swelling behavior,which fitted with Fickian model when the concentration of glutaraldehyde was 0.107 mol·L-1 while non-Fickian model when it was 0.320 mol·L-1 and 0.533 mol·L-1 respectively.