Catalyst-free transesterification vitrimers: activation via α-difluoroesters - Institut Charles Gerhardt - Institut de Chimie Moléculaire et des Matériaux de Montpellier Access content directly
Journal Articles Polymer Chemistry Year : 2022

Catalyst-free transesterification vitrimers: activation via α-difluoroesters


Transesterification vitrimers often require high catalyst loadings to achieve 3D networks reprocessable at moderately high temperature. The addition of an activating group close to the ester bonds allows to synthesize catalyst-free transesterification vitrimers. Here, we unveil the effect of the α-difluoromethylene group as a novel activating group for such materials. Fluorine features exceptional properties, in particular a strong electronegativity enabling CF2 groups to activate the epoxy-acid polymerization, and more interestingly also the transesterification reaction on adjacent esters. Consequently, this fluorinated group affords the easy synthesis of a highly crosslinked reprocessable material that do not require any metallic or organic catalyst. This vitrimer is endowed with advantageous reprocessing abilities and underwent 10 consecutive cycles without loss of mechanical properties. In brief, the vitrimer combines durability, recyclability and is catalyst-free. This discovery is one step further towards recyclable greener polymers


Fichier principal
Vignette du fichier
article_Flo_template_RSC_v21.pdf (968.13 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03663953 , version 1 (10-05-2022)



Florian Cuminet, Dimitri Berne, Sébastien Lemouzy, Éric Dantras, Christine Joly-Duhamel, et al.. Catalyst-free transesterification vitrimers: activation via α-difluoroesters. Polymer Chemistry, 2022, 13 (18), pp.2651-2658. ⟨10.1039/d2py00124a⟩. ⟨hal-03663953⟩
44 View
34 Download



Gmail Facebook Twitter LinkedIn More