Method for preparing anisotropic cellulose-based hydrogel
AssigneeXiamen University
InventorsXianhai Zeng, Guihua Yan, Lu Lin, Yong Sun, Xing Tang
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Abstract
A method for preparing anisotropic cellulose-based hydrogel is provided. The method comprises ammoniating the dialdehyde cellulose obtained by oxidizing cellulose using sodium periodate to obtain ammoniated cellulose derivatives; performing Schiff reaction using the ammoniated cellulose derivatives and dopamine to obtain cellulose-based nanosheets; depositing Fe3O4 nanoparticles on a surface of the cellulose-based nanosheets by a deposition method to obtain magnetic cellulose-based nanosheets; and forming the anisotropic cellulose-based hydrogel using the magnetic cellulose-based nanosheets by a polymerization method.
Claims13
A method for preparing anisotropic cellulose-based hydrogel, comprising
- (1) obtaining dialdehyde cellulose by oxidizing cellulose using sodium periodate;
- (2) ammoniating the dialdehyde cellulose to obtain ammoniated cellulose derivatives;
- (3) performing Schiff reaction using the ammoniated cellulose derivatives and dopamine to obtain cellulose-dopamine nanosheets;
- (4) depositing Fe3O4 nanopartides on a surface of the cellulose-dopamine nanosheets by a deposition method to obtain magnetic cellulose-dopamine nanosheets;
- and
- (5) forming the anisotropic cellulose-based hydrogel using the magnetic cellulose-dopamine nanosheets by a polymerization method.
Dependencies are inferred from the claim text.