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Photographs of CMC/chitosan blend solutions (gel) under different pH conditions and the Schematic diagrams of the interaction between CMC and chitosan molecules: photographs of ratio group. (a) chitosan, (b) CS28, (c) CS46, (d) CS64, (e) CS82, (f) CMC; photographs of pH group (g) CCS46-pH1, (h) CCS46-pH5, (i) CCS46-pH9, (j) CCS46-pH13; Schematic diagrams: (k) CCS46-pH1, (l) CCS46-pH5 and CCS46-pH9, (m) CCS46-pH13.
