Controlled radical polymerization of vinyl esters and vinyl amides : experimental and theoretical studies / Morin, Aurélie  

Public ISBD Titre : Controlled radical polymerization of vinyl esters and vinyl amides : experimental and theoretical studies Type de document : texte imprimé Auteurs : Morin, Aurélie, Auteur ; Rinaldo Poli, Directeur de thèse Année de publication : 2013 Langues : Anglais (eng) Tags : CONTROLLED RADICAL POLYMERIZATION (CRP)  ORGANOMETALLIC MEDIATED RADICAL POLYMERIZATION (OMRP)  DENSITY FUNCTIONAL THEORY (DFT)  COPPER, VINYL ACETATE  ETHYLENE Résumé : "This thesis focus on Controlled Radical Polymerization (CRP) of vinyl esters and vinyl amides. One of the possibilities to achieve this control is a dynamic reversible trapping of the growing radical chains (P•) by a controlling agent (T) to form a dormant species (P?T’). The radical concentration in the medium can be dramatically reduced so that the unwanted terminations are disfavored and polymers with controlled molecular weights and low dispersity can be obtained. A way to achieve this control is the use of metallic complexes, which can oxidize and form a metal-carbon bond, as trapping agent in the so-called Organometallic Mediated Radical Polymerization (OMRP). So far, different transition metals have been used with gretaer or smaller success. In this study, the synthesis of copper(I) complexes and their investigation for the vinyl acetate and ethylene polymerization under OMRP conditions were performed. We also used computational chemistry as a tool to better understand why the cobalt(II) acetylacetonate (Co(acac)2) has, so far, given the best results for either vinyl acetate or vinyl amides polymerization. Thanks to Density Functional Theory (DFT), the crucial role of the monomer carbonyl group coordination to cobalt was pointed out." Document : Thèse de Doctorat Etablissement_delivrance : Institut National Polytechnique de Toulouse - INPT Date_soutenance : 06/11/2013 Ecole_doctorale : Sciences de la Matière (Toulouse) Domaine : Chimie organométallique et de coordination En ligne : https://theses.hal.science/tel-04301468v1 Controlled radical polymerization of vinyl esters and vinyl amides : experimental and theoretical studies [texte imprimé] / Morin, Aurélie, Auteur ; Rinaldo Poli, Directeur de thèse . - 2013. Langues : Anglais (eng) Tags : CONTROLLED RADICAL POLYMERIZATION (CRP)  ORGANOMETALLIC MEDIATED RADICAL POLYMERIZATION (OMRP)  DENSITY FUNCTIONAL THEORY (DFT)  COPPER, VINYL ACETATE  ETHYLENE Résumé : "This thesis focus on Controlled Radical Polymerization (CRP) of vinyl esters and vinyl amides. One of the possibilities to achieve this control is a dynamic reversible trapping of the growing radical chains (P•) by a controlling agent (T) to form a dormant species (P?T’). The radical concentration in the medium can be dramatically reduced so that the unwanted terminations are disfavored and polymers with controlled molecular weights and low dispersity can be obtained. A way to achieve this control is the use of metallic complexes, which can oxidize and form a metal-carbon bond, as trapping agent in the so-called Organometallic Mediated Radical Polymerization (OMRP). So far, different transition metals have been used with gretaer or smaller success. In this study, the synthesis of copper(I) complexes and their investigation for the vinyl acetate and ethylene polymerization under OMRP conditions were performed. We also used computational chemistry as a tool to better understand why the cobalt(II) acetylacetonate (Co(acac)2) has, so far, given the best results for either vinyl acetate or vinyl amides polymerization. Thanks to Density Functional Theory (DFT), the crucial role of the monomer carbonyl group coordination to cobalt was pointed out." Document : Thèse de Doctorat Etablissement_delivrance : Institut National Polytechnique de Toulouse - INPT Date_soutenance : 06/11/2013 Ecole_doctorale : Sciences de la Matière (Toulouse) Domaine : Chimie organométallique et de coordination En ligne : https://theses.hal.science/tel-04301468v1

---

1 (1 - 1 / 1) Par page : 25 50 100 200