Synthesis and Properties of Poly (aryl ether sulfones) Functionalized with Pendant Perfluoroalkyl Sulfonic Acid for Proton Exchange Membrane

被引：4

作者：

Wang Yong-Peng ^{[1
]}

Yue Xi-Gui ^{[1
]}

Pang Jin-Hui ^{[1
]}

Li Xue-Feng ^{[1
]}

Li Na ^{[1
]}

Zhang Hai-Bo ^{[1
]}

Jiang Zhen-Hua ^{[1
]}

机构：

[1] Jilin Univ, Alan G MacDarmid Inst, Changchun 130012, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2012年 / 33卷 / 05期

关键词：

Perfluoroalkyl sulfonic acid; Poly(aryl ether sulfones); Proton exchange membrane;

D O I：

10.3969/j.issn.0251-0790.2012.05.043

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel poly(arylene ether sulfone) with a perfluoroalkyl sulfonic acid pendant(PES-PSA) was synthesized by Ullman coupling of poly {oxy-4,4'-[2-(4'-bromophenyl ene) biphenylene] oxy-4,4'-diphenyl-sulfone} (PES-Br) and potassium 1,1, 2,2-tetrafluoro-2-(1, 1,2, 2-tetrafluoro-2-iodo-ethoxy) ethanesulfonate (PSA-K). The introduction of the perfluoroalkyl sulfonic acids was successfully carried out with high conversion (c. a. 50%) to yield the desired polymer. Even with a low ion exchange capacity(IEC) of 0. 907 meg./g, PES-PSA exhibited a high proton conductivity of 0. 039 S/cm at 80 degrees C under 100% relative humidity. The low IEC makes the membrane own good dimensional stability and thermal stability. Other membrane properties, such as thermal properties and water uptake were also investigated in detail.

引用

页码：1100 / 1105

页数：6

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