Modulation of furanic-sulfonated isophthalic copolyesters properties through diols units control - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue European Polymer Journal Année : 2014

Modulation of furanic-sulfonated isophthalic copolyesters properties through diols units control

A. Bougarech
  • Fonction : Auteur
S. Abid
  • Fonction : Auteur
R. El Gharbi
  • Fonction : Auteur
Etienne Fleury

Résumé

A series of furanic sulfonated copolyesters containing 20 mol.% of sodium sulfoisophthalate units were synthesized via a two-step melt polycondensation process from (5,5'-isopropylidene-bis(ethyl 2-furoate)) and (dimethyl 5-sodiosulfoisophthalate) with different diols: alkyl (1,2-ethanediol, 1,4-butanediol, 1,6-hexanediol) or ether (diethylene glycol and triethylene glycol). Structural characterization of copolyesters was deeply investigated by H-1 and C-13 (1D and 2D) NMR spectroscopy and by SEC. The results showed that the final structures not only depend on the initial monomers composition but also on the process which can induce at high temperature etherification and decarboxylation side reactions. For the alkyldiols series low molecular weights were obtained when side reactions occurred and when the monomer excess was difficult to remove from the reaction medium. Finally, it has been displayed that the modulation of dials composition allows for tuning copolyesters properties. Thus the copolyesters are amorphous with T-g ranging from 19 to 66 degrees C whereas their liquid water sorption and hydrolytic degradation resistance are in relation with the flexibility of the chain and their water accessibility to the ester linkages.
Fichier non déposé

Dates et versions

hal-01088005 , version 1 (27-11-2014)

Identifiants

Citer

A. Bougarech, Fernande Boisson, S. Abid, R. El Gharbi, Etienne Fleury. Modulation of furanic-sulfonated isophthalic copolyesters properties through diols units control. European Polymer Journal, 2014, 58, pp.207-217. ⟨10.1016/j.eurpolymj.2014.06.018⟩. ⟨hal-01088005⟩
38 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More