Titre :

A Simple and Efficient Protocol for the Catalytic Insertion Polymerization of Functional Norbornenes

Auteur(s) :

Commarieu, Basile [Auteur]
Département de chimie [Sherbrooke] [UdeS]
Potier, Jonathan [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Compaore, Moubarak [Auteur]
Département de chimie [Sherbrooke] [UdeS]
De Boever, Raphael [Auteur]
Université de Sherbrooke [UdeS]
Imbeault, Regis [Auteur]
Université de Sherbrooke [UdeS]
Claverie, Jerome P. [Auteur]
Faculté des sciences [Sherbrooke] [UdeS]

Titre de la revue :

Journal of Visualized Experiments

Date de publication :

2017-02-27

Discipline(s) HAL :

Sciences de l'ingénieur [physics]/Matériaux
Sciences de l'ingénieur [physics]/Génie des procédés
Chimie/Matériaux
Chimie/Polymères

Résumé en anglais : [en]

Norbornene can be polymerized by a variety of mechanisms, including insertion polymerization whereby the double bond is polymerized and the bicyclic nature of the monomer is conserved. The resulting polymer, polynorbornene, ...
Lire la suite >Norbornene can be polymerized by a variety of mechanisms, including insertion polymerization whereby the double bond is polymerized and the bicyclic nature of the monomer is conserved. The resulting polymer, polynorbornene, has a very high glass transition temperature, Tg, and interesting optical and electrical properties. However, the polymerization of functional norbornenes by this mechanism is complicated by the fact that the endo substituted norbornene monomer has, in general, a very low reactivity. Furthermore, the separation of the endo substituted monomer from the exo monomer is a tedious task. Here, we present a simple protocol for the polymerization of substituted norbornenes (endo:exo ca. 80:20) bearing either a carboxylic acid or a pendant double bond. The process does not require that both isomers be separated, and proceeds with low catalyst loadings (0.01 to 0.02 mol%). The polymer bearing pendant double bonds can be further transformed in high yield, to afford a polymer bearing pendant epoxy groups. These simple procedures can be applied to prepare polynorbornenes with a variety of functional groups, such as esters, alcohols, imides, double bonds, carboxylic acids, bromo-alkyls, aldehydes and anhydrides.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
ENSCL
CNRS
INRA

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Ingénierie des Systèmes Polymères

Date de dépôt :

2019-05-16T17:21:58Z
2024-06-18T12:22:32Z