Sulfophenylation of polysulfones for proton-conducting fuel cell membranes

被引：1
|
作者：
Lafitte, B [1 ]
Karlsson, LE [1 ]
Jannasch, P [1 ]
机构：
[1] Lund Univ, Dept Polymer Sci & Engn, SE-22100 Lund, Sweden
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2002年 / 23卷 / 15期
关键词：
ion exchange membranes; ionomers; polyelectrolytes; polymer electrolytes; sulfonation;
D O I：
10.1002/1521-3927(20021001)23:15<896::AID-MARC896>3.0.CO;2-P
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Polysulfone has been sulfophenylated by lithiation and anionic reaction with 2-sulfobenzoic acid cyclic anhydride. This provides a new convenient method to modify polysulfones by attaching pendant sulfonated phenyl groups via ketone links. Membranes of the sulfophenylated polysulfones show promise for use in proton-exchange-membrane fuel cells. For example, a membrane with 0.9 sulfophenyl units per repeating polysulfone unit and 30 wt.-% water was found to have a proton conductivity of 32 mS/cm at 60degreesC.
引用
收藏
页码：896 / 900
页数：5
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