OC-13 B

SEPM 2014 – Yasmine Hammamet, March 17th-19th 2014
OC13B
FURANIC SULFONATED BIOBASED COPOLYESTERS
WATER SORPTION AND HYDROLYTIC DEGRADATION
A. Bougarech a,b, M. Abid a , F. Gouanvéc, E. Espuchec,
S. Abid a, R. EL Gharbi a, E. Fleury b
a
Laboratoire de Chimie Appliquée, Faculté des Sciences de Sfax, Université de Sfax, Tunisie
Université de Lyon, CNRS, UMR 5223, INSA-Lyon, IMP@INSA, F-69621, Villeurbanne, France
c
Université de Lyon, CNRS, UMR 5223, Université Lyon I, IMP@Lyon1,
F-69621, Villeurbanne, France
b
Working with bio-sourced monomers is of interest in the case of polyesters since
such polymers are widely used in industry or home applications. Thus hydrophilic
copolyesters which can be ionic [1] or non ionic [2] polymer are found as soil release
molecules or surfactants in home care application or as sizing agent and dye
enhancers in the textile domains. The aim of present work was to synthesis a novel
furanic based sulfonated polyesters by melt polycondensation [3].
Furanic based sulfonated copolyesters were prepared by melt polycondensation
from diols: (Ethandiol, Butanediol, Hexanediol, Diethylene glycol, Triethylene
glycol) and mixture of (5,5’-Isopropylidene-bis(ethyl 2-furoate)) and (dimethyl 5sodiosulfoisophthalate). Structural characterization of copolyesters was
investigated by (1H, 13C NMR and 2D NMR). The NMR investigation for all
copolyesters indicates that copolymerization takes place and the microstructure
was found to be blockiness. The thermal properties show that the level of Tg was
correlated to the diols nature and increases with content of sulfonated moieties
ranging from 5 to 40%. Liquid water sorption was also performed on these
copolyesters. Sorption isotherms revealed a high dependence of liquid water
sorption in the diols nature. The hydrolytic degradation in acidic aqueous
conditions show that the mechanism of the hydrolysis of copolyesters was
elucidated in relation with the microstructure.
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1.
2.
3.
Fleury E, Ricca J.M. Rhodia Chimie WO 98 41558 A1
Fleury E, Bossennec V, Dubois J. Rhodia Chimie WO 0004120
Bougarech A, Abid M, Gounvé F, Espuche E, Abid S, El Gharbi R, Fleury E. Polymer
2013;54;5482