Synthesis and characterization of sulfonated copolyethersulfones

The present article deals with the synthesis and characterization of some sulfonated copolyethersulfones. The synthetic approach differs from the post sulfonation approach traditionally reported in the literature. The synthetic procedure is based on the use of sulfonated monomers which are then reac...

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Bibliographic Details
Published in:Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2010-07, Vol.48 (14), p.3010-3023
Main Authors: Samperi, Filippo, Battiato, Salvatore, Puglisi, Concetto, Asarisi, Vincenzo, Recca, Antonino, Cicala, Gianluca, Mendichi, Raniero
Format: Article
Language:English
Subjects:
Applied sciences
copolymerization
Copolymers
Ethers
Exact sciences and technology
functionalization of polymers
gel permeation chromatography
MALDI
Mass distribution
Monomers
NMR
Organic polymers
Physicochemistry of polymers
poly(ether sulfones)
Polycondensation
Polymer chemistry
Preparation, kinetics, thermodynamics, mechanism and catalysts
Reproduction
SEC-viscometry
sulfonated polyethersulfones
Synthesis
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Summary:The present article deals with the synthesis and characterization of some sulfonated copolyethersulfones. The synthetic approach differs from the post sulfonation approach traditionally reported in the literature. The synthetic procedure is based on the use of sulfonated monomers which are then reacted with previously synthesized telechelic hydoxy-ended poly (ether sulpnone)s. Combining the MALDI-TOF MS and ¹H NMR analyses, with SEC-Viscometry and TGA measurements, we demonstrate a powerful tool for characterizing the chemical composition, end chains, degree of sulfonation (DS) and molecular mass distribution (MMD) of disulfonated poly(arylene ether-sulfone) copolymers. The characterization techniques allowed to determine the exact nature of the copolymers synthesized and to reveal some interesting features about the reaction. DMA data show that the glass transition temperature of sulfonated copolymers with similar DS increase as raise their MMD. Copolymers with a DS of 10-11 mol % reach a Tg of 244-246 °C.
ISSN:0887-624X
1099-0518
1099-0518
DOI:10.1002/pola.24079