Method of preparation of monomers of saccharides containing at least one group polymerizable carbonyloxyvinylique.

摘要

Process for the preparation of monomers comprising at least one polymerizable carbonyloxyvinylique of a saccharide, chosen from mono- -, - di- and tri-saccharides, in particular from among the mono- -, - di- and tri-saccharides not reducing agents, which consists in reacting, in aqueous medium, said polysaccharide with a reagent containing the said group polymerizable carbonyloxyvinylique esterifying in the presence of a base, while maintaining the ph of the reaction medium at a value in the interval of 7 to 11 for the entire duration of the reaction. & br / monomers of saccharide group comprising at least one polymerizable carbonyloxyvinylique having a degree of substitution controlled.