Adhesion of Colloidal Polyelectrolyte Complexes to Wet Cellulose

Abstract

The adhesion of wet regenerated cellulose to colloidal complexes formed between carboxymethyl cellulose (CMC) and polyvinylamine (PVAm) was evaluated by measuring the force to delaminate pairs of regenerated cellulose membranes bound together with polyelectrolyte complex. The most important parameter was the surface composition of the colloidal complex particles. High delamination forces corresponded to using complexes coated with excess PVAm whereas low adhesion was observed for both CMC coated complexes and complexes in which the PVAm was replaced with polymer bearing quaternary amine groups. Adhesion with complexes was highest at pH 4 and rather insensitive to pH from 6 to 9. Finally, mild TEMPO/NaBr/NaClO oxidation of the cellulose gave much stronger adhesion when PVAm was in excess but not with the CMC rich complexes.

Cellulose fibre networks reinforced with carboxymethyl cellulose/chitosan complex layer-by-layer

“…Oppositely charged polyelectrolyte pairs, such as PAE/CMC Gernandt, Wågberg, Gärdlund, & Dautzenberg, 2003), CMC/polyvinylamine (Feng, Pouw, Leung, & Pelton, 2007) and CMC/CS (Fatehi, Kititerakun, Ni, & Xiao, 2010;Fatehi, Qian, Kititerakun, Rirksomboon, & Xiao, 2009), were studied and reported to be effective wet strength additives. This technique has been widely used for layer-by-layer (LbL) self-assembly for surface modification through constructing multilayers with tailored composition and properties on solid surface (Zhang et al, 2004).…”

Improvement of the interfacial compatibility between cellulose and poly(l-lactide) films by plasma-induced grafting of l-lactide: The evaluation of the adhesive properties using a peel test

“…The increase in the peel strength was 250% (from 13 to 46 N/m). However, failure occurred at the cellulose complex interface and not within the complex itself showing restricted interaction with the cellulose surface [24].…”

Polyelectrolyte Complex Nanoparticles of Poly(ethyleneimine) and Poly(acrylic acid): Preparation and Applications

“…In recent times also mixed polycation/polyanion (PEL complex) systems were used for that purpose, which was scientifically studied by, e.g., Wagberg [34] and Pelton [34]. Here we present some related results on the interaction of model cellulose films with mixed systems of PEI and PAC.…”