FIBRES DE POLYSACCHARIDE SUR LESQUELLES SONT GREFFES PAR CLICK CHEMISTRY DES NANOPARTICULES

摘要

Polysaccharide fibers (I), optionally in the form of a textile or non-woven comprise nanoparticles which are covalently grafted by click chemistry on the surface of the fibers, where the nanoparticles comprise an outer envelope of polysiloxane. Independent claims are included for: (1) producing polysaccharide fibers comprising reacting, according to cycloaddition mechanism, either fibers or polysaccharide-bearing reactive functional group of formula (-CC-X) with nanoparticles carrying reactive azide functions (-N 3) or fibers or polysaccharide-bearing reactive azide functions (-N 3) with nanoparticles bearing reactive functional group of formula (-CC-X) to obtain a covalent bond between the polysaccharide fibers and nanoparticles by click chemistry; and (2) nanoparticles comprising an outer envelope of polysiloxane bearing reactive azide functions (-N 3) or reactive functional group of formula (-CC-X). X : N or CH.