Cationic and anionic polyelectrolyte complexes of xylan and chitosan: Interaction with lignocellulosic surfaces
- Mocchiutti, Paulina
- Schnell, Carla Natali
- Rossi, Gerardo Daniel
- Peresin, María Soledad
- Zanuttini, Miguel Angel Mario
- Galván, María Verónica
DOIAbstract
Cationic (CatPECs) and anionic (AnPECs) polyelectrolyte complexes from xylan and chitosan were formed, characterized and adsorbed onto unbleached fibers for improving the papermaking properties. They were prepared at a level of 30% of neutralization charge ratio by modifying the order of addition of polyelectrolytes and the ionic strength (0.01 N and 0.1 N NaCl). The charge density, colloidal stability and particle size of polyelectrolyte complexes (PECs) was measured using polyelectrolyte titration method, Turbiscan and Zetasizer Nano equipments, respectively. All the complexes were stable even after seven days from PEC formation. DRIFT spectra of complexes were also analyzed. The adsorption behavior of them onto cellulose nanofibrils mode...
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