Sustainable In a new work, the role of an anionic polysaccharide, sodium alginate (SA), as a thickener, was investigated in a typical wall paint formulation by evaluating its interaction with the principal components of the formulation: water, binder, pigment and extender. Contemplating the results, sodium alginate turns out to be a suitable thickener. In particular, the possibility of building-up a network due to the presence of entanglements and the interaction with water molecules and extender demonstrated that the formulation prepared with 0.2 wt. % of a medium molecular weight alginate was the most promising one. Gaggero, Giulia et ...