International Journal of Chemical Engineering / 2018 / Article / Fig 10

Research Article

Polyelectrolyte Complexation versus Ionotropic Gelation for Chitosan-Based Hydrogels with Carboxymethylcellulose, Carboxymethyl Starch, and Alginic Acid

Figure 10

FTIR Spectra of hydrogels made from CMC (a) 2% by (b) ionotropic gelation with CaCl2 1% w/v, (c) polyelectrolyte complexation with CS 0.01% w/v, and (d) combination of ionotropic gelation and polyelectrolyte complexation mixing.