High ionic exchange capacity polyphenylsulfone (SPPSU) and polyethersulfone (SPES) cross-linked by annealing treatment: Thermal stability, hydration level and mechanical properties

被引：80

作者：

Di Vona, M. L. ^{[1
]}

Sgreccia, E. ^{[1
,2
]}

Tamilvanan, M. ^{[1
]}

Khadhraoui, M. ^{[2
]}

Chassigneux, C. ^{[2
]}

Knauth, P. ^{[2
]}

机构：

[1] Univ Roma Tor Vergata, Dip Sci Tecnol Chim, Rome, Italy

[2] Univ Aix Marseille 1, CNRS, UMR 6264, Lab Chim Provence,Ctr St Jerome, Marseille, France

来源：

JOURNAL OF MEMBRANE SCIENCE | 2010年 / 354卷 / 1-2期

关键词：

Polymer electrolyte; Aromatic polymer; Water uptake; Swelling; PEM fuel cells; POLYMER ELECTROLYTE MEMBRANES; CONDUCTING HYBRID POLYMERS; POLY(ETHER ETHER KETONE); WATER-UPTAKE; FUEL-CELLS; IONOMER MEMBRANES; PROTON; ACID; POLYSULFONES; SULFONE);

D O I：

10.1016/j.memsci.2010.02.058

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Thermal stability, hydration and mechanical properties of thermally cross-linked sulfonated aromatic polymers (SAP) with high ionic exchange capacity (IEC) were measured and compared to untreated samples. The formation of cross-linking greatly stabilizes sulfonated polyphenylsulfone (SPPSU) in terms of thermal, mechanical, and hydrolytic degradation: it can resist in water even at a temperature of 145 degrees C with improved mechanical properties, while TGA experiments demonstrate that SPPSU membranes are stable well above 200 degrees C. Sulfonated polyethersulfone (SPES) membranes show, instead, a hydrolytic instability. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：134 / 141

页数：8

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