Patents Assigned to UNIV. DE MONTPELLIER II SCIENCES ET TECH. DU LANGUEDOC
  • Process for Preparing Copolymers by Anionic Solvent-Free Polymerization
    Publication number: 20080312376
    Abstract: The invention concerns a process for preparing a block or comb copolymer comprising at least one hydrophilic portion and at least two hydrophobic portions, by anionic solvent-free polymerization of a prepolymer selected from a polyethylene glycol and a polyvinyl alcohol, and of a lactone or dilactone monomer. The process is carried out in the presence of an alkaline-earth metal hydride, in an inert atmosphere, and the polymerization step is not carried out under vacuum. The invention also concerns copolymers obtained by this process.
    Type: Application
    Filed: November 28, 2006
    Publication date: December 18, 2008
    Applicants: CENTRE NATIONAL DE LA RECHERCH SCIENTIFIQUE, UNIV. DE MONTPELLIER II SCIENCES ET TECH. DU LANGUEDOC
    Inventors: Andre Mas, Nadia Guerrouani, Francois Schue