The membrane electrode assembly for {TAIL ~ solid polymer electrolyte fuel cell} 1, wherein Ph in {HEAD ~ the formula} is a naphthalene group, an anthracene group, a tetracene group, or a pentacene group 
The membrane electrode assembly for { TAIL ~ solid polymer electrolyte fuel cell } 1 , wherein Ph in { HEAD ~ the formula } is a naphthalene group , an anthracene group , a tetracene group , or a pentacene group
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