Photoluminescent Paper Based on Poly(fluorene-co-fluorenone) Particles Adsorption on Modified Cellulose Fibers

Cationic polyfluorene colloids are prepared and adsorbed on cellulose to obtain fibers and paper sheets with high photoluminescence (see figure). The oxidative pretreatment of cellulose allows the tailoring of the fiber uptake capacity of polyfluorene colloids and the final photoluminescence intensity. Paper sheet strength is not affected by the adsorption of a sufficient amount of the colloid.