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