%0 Journal Article %T Synthesis and characterization of sulfonated poly(benzoxazole ether ketone)s by direct copolymerization as novel polymers for proton‐exchange membranes %A Li, Jinhuan %A Yu, Hongyan %J Journal of Polymer Science Part A Polymer Chemistry %V 45 %N 11 %P 2273-2286 %@ 0887-624X %D 2007-01-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve