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Brevet Année : 2011

Method for synthesizing polyesters in an acidic ionic liquid medium

Alain Fradet
  • Fonction : Auteur
Hervé Lefebvre
Ludovic Paquin
  • Fonction : Auteur
  • PersonId : 946812
Daniel Carrié
  • Fonction : Auteur
  • PersonId : 946813

Résumé

The present invention relates to a method for synthesizing polyesters or copolyesters having a mean molar mass, in mass MW, greater than 10000, by means of a direct polyesterification reaction between a diacid, diester, hydroxyacid, or hydroxyester and a diol, or between hydroxyacids or hydroxyesters, said method being characterized in that said polyesterification reaction is carried out at a temperature of 60 to 150°C at atmospheric pressure in a reaction medium including at least one acidic ionic liquid consisting of an anion and a cation, the electrical charges of which balance each other out, and wherein at least the cation is a strong acid according to the Brønsted definition, or comprises a grouping that is a strong acid according to the Brønsted definition.

Domaines

Matériaux
Fichier non déposé

Dates et versions

hal-00873181 , version 1 (15-10-2013)

Identifiants

  • HAL Id : hal-00873181 , version 1

Citer

Alain Fradet, Hervé Lefebvre, Jean-Pierre Bazureau, Ludovic Paquin, Daniel Carrié. Method for synthesizing polyesters in an acidic ionic liquid medium. France, Patent n° : WO2011012814 A1. 2011. ⟨hal-00873181⟩
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