STUDY ON THE PREPARATION AND PROPERTIES OF SULFONATED PHENOLPHTHALEIN POLY(ETHER SULFONE) MEMBRANES

LI Lei; XU Li; WANG Yuxin

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STUDY ON THE PREPARATION AND PROPERTIES OF SULFONATED PHENOLPHTHALEIN POLY(ETHER SULFONE) MEMBRANES

Rapid Communications | 更新时间：2021-03-19

- STUDY ON THE PREPARATION AND PROPERTIES OF SULFONATED PHENOLPHTHALEIN POLY(ETHER SULFONE) MEMBRANES
- Acta Polymerica Sinica Issue 4, Pages: 465-468(2003)
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- Published：20 August 2003，
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LI Lei, XU Li, WANG Yuxin. STUDY ON THE PREPARATION AND PROPERTIES OF SULFONATED PHENOLPHTHALEIN POLY(ETHER SULFONE) MEMBRANES. [J]. Acta Polymerica Sinica (4):465-468(2003)
DOI：

LI Lei, XU Li, WANG Yuxin. STUDY ON THE PREPARATION AND PROPERTIES OF SULFONATED PHENOLPHTHALEIN POLY(ETHER SULFONE) MEMBRANES. [J]. Acta Polymerica Sinica (4):465-468(2003) DOI：

摘要

直接甲醇燃料电池 (Ｄｉｒｅｃｔｍｅｔｈａｎｏｌｆｕｅｌｃｅｌｌ

ＤＭＦＣ)以高效、清洁和燃料储运方便等优点适宜于作为各种用途的可移动动力源

成为 2 0世纪 90年代以来研究与开发的热点[1

2 ] .目前

这种电池的研究难点主要集中在催化剂不稳定和质子交换膜透醇上 .一张好的ＤＭＦＣ膜不但要可传递质子、绝缘电子

还应具有良好的阻醇性能 .如果膜的阻醇性能不好

甲醇会穿过膜到达阴极

与氧直接反应而不产生电流

不但....

Abstract

Sulfonated phenolphthalein poly(ether sulfone) (SPES-C) with various sulfonation degree were synthesized by reaction of PES-C with sulfonic acid as sulfonating agent and solvent．Their proton conductivity and methanol permeability as a function of the degree of sulfonation were investigated．For 70.21％ degree of sulfonation

proton conductivity was 3.45 x 10-2 S／cm at 100℃

which is closed to or superior to that of NationοR 115 membrane at the same conditions (4.19×10-2 S／cm)．Methanol permeability of SPES-C was considerable smaller than that of Nation国 115 membrane．Because of their high conductivity and low methanol permeabihty

SPES- C membranes appear to be excellent candidate for use in DMFC applications．

关键词

直接甲醇燃料电池磺化酚酞型聚醚砜质子交换膜电导率甲醇透过率

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