A process for the preparation of water soluble vinyl saccharide polymers.

摘要

This invention provides a process for the preparation of water-soluble vinyl saccharide polymers by polymerisation of at least one water-soluble monovinyl saccharide monomer in water at a temperature in the range of from 10 °C to 90 °C, characterized in that the polymerisation is carried out in the presence of an azo-type free-radical initiator and that the concentration of water-soluble monovinyl saccharide monomer in water is not higher than 150 kg/m<Sup>3</Sup>. The polymers prepared according to the invention may advantageously be used for EOR and for water treatment.