Synthesis of poly(arylene ether sulfone)s with locally and densely sulfonated pentiptycene pendants as highly conductive polymer electrolyte membranes

被引：47

作者：

Gong, Feixiang ^{[1
,2
]}

Zhang, Suobo ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Polymer Ecomat, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 23期

基金：

美国国家科学基金会;

关键词：

Sulfonated pentiptycene groups; Proton exchange membrane; Low humidity; PROTON-EXCHANGE MEMBRANES; ACID GROUPS; FUEL-CELLS; COPOLYMERS; MONOMER; POLYIMIDE; KETONE)S; SYSTEMS;

D O I：

10.1016/j.jpowsour.2011.08.028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Poly(aryl ether sulfone)s containing sulfonated pentiptycene groups SPES-x-PPD are firstly synthesized through nucleophilic aromatic substitution polycondensation by using pentiptycene-6,13-diol, bis(4-hydroxyphenyl) sulfone and 4,4'-difluorodiphenyl sulfone, followed by postsulfonation with concentrated sulfuric acid at room temperature. The structures of SPES-x-PPD are characterized by IR, H-1 NMR and C-13 NMR spectra. These ionomers generally show high thermal stability. Transmission electron microscopic observations reveal that SPES-x-PPD membranes form well-defined microphase separated structures. SPES-40-PPD with the IEC value 2.36 mmol g(-1) shows conductivity of 2.6 x 10(-1) S cm(-1) which is much higher than that of perfluorinated Nation 117 membrane (1.1 x 10(-1) S cm(-1)) at 80 degrees C and 94% RH. At 80 degrees C and 34% RH, SPES-40-PPD membrane displays the conductivity of 2.7 x 10(-3) S cm(-1) which is comparable with that of Nafion 117 membrane (3.0 x 10(-3) S cm(-1)). (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：9876 / 9883

页数：8

共 29 条

[1] Aliphatic/aromatic polyimide lonomers as a proton conductive membrane for fuel cell applications [J].