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Synthesis of Linear High Molar Mass Glycidol-Based Polymers by Monomer-Activated Anionic Polymerization

Gervais, Matthieu ; Brocas, Anne-Laure ; Cendejas, Gabriel ; Deffieux, Alain ; Carlotti, Stephane

International journal of biological macromolecules, 2010-02, Vol.43 (4), p.1778-1784 [Periódico revisado por pares]

Washington, DC: American Chemical Society

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  • Título:
    Synthesis of Linear High Molar Mass Glycidol-Based Polymers by Monomer-Activated Anionic Polymerization
  • Autor: Gervais, Matthieu ; Brocas, Anne-Laure ; Cendejas, Gabriel ; Deffieux, Alain ; Carlotti, Stephane
  • Assuntos: Applied sciences ; Chemical Sciences ; Exact sciences and technology ; Organic polymers ; Physicochemistry of polymers ; Polymerization ; Polymers ; Preparation, kinetics, thermodynamics, mechanism and catalysts
  • É parte de: International journal of biological macromolecules, 2010-02, Vol.43 (4), p.1778-1784
  • Descrição: Linear polyglycidols of high molar masses were prepared by the monomer-activated anionic polymerization of the corresponding protected monomers, ethoxyethyl glycidyl ether and tert-butyl glycidyl ether, using a system composed of tetraoctylammonium bromide as initiator and triisobutylaluminum as monomer activator. The aluminic compound was used in 1.5−5-fold excess compared to the initiator. Linear poly(ethoxyethyl glycidyl ether) and poly(tert-butyl glycidyl ether), with narrow chain dispersity and controlled high molar masses, up to 85 000 g/mol, were prepared at 0 °C in a few hours. Deprotection of hydroxyl functions by acidic treatment of the polymers was shown to proceed quantitatively and cleanly affording the corresponding linear polyglycerol and validating the use of these protecting groups. The copolymerization of protected glycidols with propylene oxide and butene oxide was also investigated with the goal to broaden the scope of this synthetic approach to various polyethers and copolyethers.
  • Editor: Washington, DC: American Chemical Society
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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