Titre :

Unusual swelling of acrylate based crosslinked polymer networks in linear primary alcohols: Experimental and modeling aspects

Auteur(s) :

Bedjaoui, Sofiane [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Université Aboubekr Belkaid - University of Belkaïd Abou Bekr [Tlemcen]
Bedjaoui, Lamia [Auteur]
Université Aboubekr Belkaid - University of Belkaïd Abou Bekr [Tlemcen]
Benbekeda, Mohammed-El-Amine [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Université Aboubekr Belkaid - University of Belkaïd Abou Bekr [Tlemcen]
Dubois, Frédéric [Auteur]
Unité de Dynamique et Structure des Matériaux Moléculaires [UDSMM]
Merah, Dounya [Auteur]
Université Aboubekr Belkaid - University of Belkaïd Abou Bekr [Tlemcen]
Supiot, Philippe [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Foissac, Corinne [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Maschke, Ulrich [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]

Titre de la revue :

Journal of Molecular Liquids

Pagination :

114459

Éditeur :

Elsevier

Date de publication :

2020-12-15

ISSN :

0167-7322

Mot(s)-clé(s) en anglais :

Polyacrylate network
Crosslinking
Swelling
Linear primary alcohols
Solubility parameters
Molecular simulation

Discipline(s) HAL :

Chimie/Matériaux
Chimie/Polymères

Résumé en anglais : [en]

The present investigation focuses on analysis of swelling behavior of systems composed of linear primary alcohols and photo-chemically crosslinked poly (butyl prop-2-enoate) (PABu). For this purpose, reactive blends composed ...
Lire la suite >The present investigation focuses on analysis of swelling behavior of systems composed of linear primary alcohols and photo-chemically crosslinked poly (butyl prop-2-enoate) (PABu). For this purpose, reactive blends composed of monofunctional (n-ABu) and difunctional (1-prop-2-enoyloxyhexyl prop-2-enoate) monomers as well as a standard photoinitiator were exposed to ultraviolet-visible (UV-vis) irradiation to induce free radical crosslinking polymerization. Experimental swelling studies of the obtained optically transparent PABu networks in methanol, ethanol, propan-1-ol, butan-1-ol, pentan-1-ol, hexan-1-ol and heptan-1-ol were performed by gravimetric sorption measurements. Among the various models available to rationalize the swelling kinetics of these PABu-alcohol systems, the second order approach was found to agree well with the experimental data.In particular it was observed that swelling properties strongly depend on the length of the linear alkyl chain of the primary alcohols. Swelling of PABu network at equilibrium increases from methanol to butan-1-ol where it reaches a maximum and subsequently decreases from butan-1-ol to heptan-1-ol. To understand this unusual behavior, polymer-solvent solubility parameters were considered, which could not account for the swelling maximum detected in the case of butan-1-ol. Molecular simulations performed on model systems composed of a linear primary alcohol molecule set and a reproduced PABu network revealed that their mutual interaction energy times the molar mass of the alcohol show a trend very similar to that of the observed swelling behavior.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL