Titre :

Reversible Tethering of Polymers onto Catechol-Based Titanium Platforms

Auteur(s) :

Laure, William [Auteur]
Fournier, David [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Woisel, Patrice [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Lyskawa, Joel [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]

Titre de la revue :

Langmuir

Numéro :

33

Pagination :

3434-3443

Date de publication :

2017-03-14

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]

In this article, we report on the reversible tethering of end-functionalized polymers onto catechol-based titanium platforms by exploiting the reversible Diels–Alder (DA) cycloaddition reaction. For this purpose, furan and ...
Lire la suite >In this article, we report on the reversible tethering of end-functionalized polymers onto catechol-based titanium platforms by exploiting the reversible Diels–Alder (DA) cycloaddition reaction. For this purpose, furan and maleimide end-functionalized polymers, prepared via reversible addition–fragmentation chain transfer polymerization, were covalently grafted through a DA reaction onto reactive titanium platforms elaborated from catechol-based anchors incorporating either the furan or the maleimide moiety. As a proof of concept, a hydrophilic poly(oligo(ethylene glycol)acrylate) (POEGA) and a hydrophobic poly(2,2,2-trifluoroethyl acrylate) (PTFEA) were grafted onto titanium surfaces and subsequently detached by exploiting the thermoreversible nature of the DA reaction [i.e., retro Diels–Alder (rDA)]. These polymers were interchanged by performing a second DA reaction, thereby allowing the titanium surface wettability to be switched from hydrophobic to hydrophilic on demand. The grafting of furan/maleimide end-functionalized polymers onto functionalized (maleimide/furan, respectively) catechol-based titanium platforms and the subsequent rDA/DA sequence used for switching the titanium surface were evidenced by attenuated total reflectance–Fourier transform-infrared spectroscopy, X-ray photoelectron spectroscopy, and contact angle measurements.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 :

2019-05-16T17:19:57Z
2024-07-10T08:15:01Z