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