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-based nanosheets;
- (4) depositing Fe3O4 nanoparticles on a surface of the cellulose-based nanosheets by a deposition method to obtain magnetic cellulose-based nanosheets;
- and
- (5) forming the anisotropic cellulose-based hydrogel using the magnetic cellulose-based nanosheets by a polymerization method.
Dependencies are inferred from the claim text.