No full text
Unpublished conference/Abstract (Scientific congresses and symposiums)
Organocatalyzed synthesis of cyclic carbonates from epoxidized vegetable oils and carbon dioxide
Alves, Margot; Méreau, Raphaël; Grignard, Bruno et al.
2014Catalysis Applied to Biomass Toward sustainable processes and chemicals (CaBiomass)
 

Files


Full Text
No document available.

Send to



Details



Keywords :
supercritical carbon dioxide
Abstract :
[en] The present project relies on the chemical fixation of CO2 and the utilization of vegetable oils as a substitute for basic petroleum derivatives for the production of new monomers and new bio-based organic polymers. In this context, a “greener” approach has been developed to produce bio-sourced polyurethanes by reaction of bio-based cyclic carbonates and amines. Bio-based cyclic carbonates can be synthesised with a total atom economy by chemical fixation of carbon dioxide onto an epoxidized vegetable oil using an appropriate catalyst. However, the conventional catalysts exhibit high catalytic activity only at high temperature and/or pressure or are sensitive to moistures water and/or oxygen. The aim of the present study is to investigate new organocatalytic platforms enabling the cycloaddition of CO2 onto epoxidized oils in the most efficient way under mild conditions. For such task, in situ kinetic follow-up of the cycloaddition of model epoxides and epoxidized oils onto CO2 has been performed by FT-IR spectroscopy in order to to determine the catalytic activity of new binary organocatalytic systems and to evaluate the influence of various parameters (pressure, temperature, catalyst concentration, nature of the epoxide) on the yields and the reaction kinetics. Then, few catalytic systems have been investigated by molecular modeling in order to understand the reaction mechanism.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry
Materials science & engineering
Author, co-author :
Alves, Margot ;  University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Méreau, Raphaël;  University of Bordeaux, Institute of Molecular Sciences, France
Grignard, Bruno ;  University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Cramail, Henri;  University of Bordeaux, Laboratoire de Chimie des Polymères Organiques
Jérôme, Christine  ;  University of Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Tassaaing, Thierry;  University of Bordeaux, Institute of Molecular Sciences, France
Language :
English
Title :
Organocatalyzed synthesis of cyclic carbonates from epoxidized vegetable oils and carbon dioxide
Publication date :
March 2014
Event name :
Catalysis Applied to Biomass Toward sustainable processes and chemicals (CaBiomass)
Event place :
Compiègne, France
Event date :
27/03/2014 - 28/03/20114
Funders :
The International Doctoral School IDS-Funmat
Commentary :
This oral communication was presented by Margot Alves
Available on ORBi :
since 12 May 2015

Statistics


Number of views
138 (5 by ULiège)
Number of downloads
0 (0 by ULiège)

Bibliography


Similar publications



Contact ORBi