Fig 1. Characterization of CC.
(A) Nitrogen concentration and degree of substitution of CC sample. (B) Chemical reaction scheme for carbamation process. (C) Solubility and concentration of cellulose solution. (D) Proposed chemical reaction of cellulose dissolved in LiOH/urea solvent. (E) Postulated chemical reaction for cellulose hydrogel cross-linking process (i). (F) Postulated chemical reaction for cellulose hydrogel cross-linking process (ii).(G) Photo of (1) cellulose solution (2) cellulose hydrogel.